Healthcare provider profile · identity verified

Robert Gilmore Macgregor, M.D.

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology · SAVANNAH, GA · NPI 1922201912

Profile state: payments and partd Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

Verified facts

What the public records show

CMS Open Payments records show Robert Gilmore Macgregor, M.D. received $4,640.30 in general payments during 2025 across 226 reported records.

ABBVIE INC. accounted for 10.4% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 46 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Epidiolex, Nurtec Odt, Qulipta, Rexulti, Ubrelvy.

ABBVIE INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported QULIPTA as an associated drug or biological on 298617 records involving 58957 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Qulipta by this doctor in 2024.

ABBVIE INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported UBRELVY as an associated drug or biological on 299803 records involving 61203 distinct recipient NPIs. Public Medicare Part D data also shows 35 claims for Ubrelvy by this doctor in 2024.

CSL Behring reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Privigen as an associated drug or biological on 464 records involving 289 distinct recipient NPIs. Public Medicare Part D data also shows 16 claims for Privigen by this doctor in 2024.

JAZZ PHARMACEUTICALS INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported EPIDIOLEX as an associated drug or biological on 10990 records involving 3626 distinct recipient NPIs. Public Medicare Part D data also shows 47 claims for Epidiolex by this doctor in 2024.

Lundbeck LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported REXULTI as an associated drug or biological on 71829 records involving 25812 distinct recipient NPIs. Public Medicare Part D data also shows 29 claims for Rexulti by this doctor in 2024.

Otsuka America Pharmaceutical, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported NUEDEXTA as an associated drug or biological on 393 records involving 285 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Nuedexta by this doctor in 2024.

Otsuka America Pharmaceutical, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported REXULTI as an associated drug or biological on 160756 records involving 46288 distinct recipient NPIs. Public Medicare Part D data also shows 29 claims for Rexulti by this doctor in 2024.

PFIZER INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported NURTEC ODT as an associated drug or biological on 217574 records involving 54025 distinct recipient NPIs. Public Medicare Part D data also shows 59 claims for Nurtec Odt by this doctor in 2024.

SK Life Science, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported XCOPRI as an associated drug or biological on 1992 records involving 782 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Xcopri by this doctor in 2024.

Teva Pharmaceuticals USA, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported AUSTEDO as an associated drug or biological on 28 records involving 15 distinct recipient NPIs. Public Medicare Part D data also shows 47 claims for Austedo by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$4,640.30

226 reported records · 39 companies

Separate record types

Research & Ownership

Research Payments (direct recipient): not present in the loaded data

Associated Research Funding (for example, named PI): not present in the loaded data

Ownership / Investment: not present in the loaded data

These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
ABBVIE INC. Unresolved — no canonical attribution shown $484.4110.4%272025
UCB, Inc. Unresolved — no canonical attribution shown $388.608.4%162025
Biogen, Inc. Unresolved — no canonical attribution shown $304.406.6%162025
Lundbeck LLC Unresolved — no canonical attribution shown $265.775.7%142025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $226.154.9%132025
PFIZER INC. Unresolved — no canonical attribution shown $218.454.7%102025
Neurelis, Inc. Neurelis, Inc.
exact · evidence 2025-02-20
$212.494.6%92025
ARGENX US, INC. Unresolved — no canonical attribution shown $196.834.2%82025
Teva Pharmaceuticals USA, Inc. Unresolved — no canonical attribution shown $178.173.8%102025
Vanda Pharmaceuticals Inc. Unresolved — no canonical attribution shown $157.803.4%72025
Averitas Pharma Inc. Unresolved — no canonical attribution shown $145.013.1%72025
Genentech USA, Inc. Unresolved — no canonical attribution shown $140.843.0%72025
Ipsen Biopharmaceuticals, Inc Unresolved — no canonical attribution shown $138.903.0%72025
CATALYST PHARMACEUTICALS, INC. Unresolved — no canonical attribution shown $100.112.2%52025
EMD Serono, Inc. Unresolved — no canonical attribution shown $96.602.1%32025
TG Therapeutics, Inc. Unresolved — no canonical attribution shown $95.772.1%42025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $94.622.0%52025
Celgene Corporation Unresolved — no canonical attribution shown $87.771.9%62025
Lilly USA, LLC Unresolved — no canonical attribution shown $85.331.8%52025
Eisai Inc. Unresolved — no canonical attribution shown $81.131.8%42025
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $80.441.7%32025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $79.341.7%42025
REVANCE THERAPEUTICS, INC. Unresolved — no canonical attribution shown $76.111.6%12025
CSL Behring Unresolved — no canonical attribution shown $73.951.6%32025
ACADIA Pharmaceuticals Inc Unresolved — no canonical attribution shown $73.261.6%42025
Merz Pharmaceuticals, LLC Unresolved — no canonical attribution shown $67.321.4%32025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $58.801.3%32025
Mallinckrodt Hospital Products Inc. Unresolved — no canonical attribution shown $58.381.3%32025
JAZZ PHARMACEUTICALS INC. Unresolved — no canonical attribution shown $57.691.2%42025
Amgen Inc. Unresolved — no canonical attribution shown $49.071.1%22025
SK Life Science, Inc. SK Life Science, Inc.
exact · evidence 2025-04-03
$47.441.0%22025
Tanabe Pharma America, Inc. Unresolved — no canonical attribution shown $47.241.0%22025
Alexion Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $34.120.7%22025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $32.000.7%12025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $27.640.6%22025
GENZYME CORPORATION Unresolved — no canonical attribution shown $27.000.6%12025
Grifols USA, LLC Unresolved — no canonical attribution shown $22.670.5%12025
Octapharma USA, Inc. Unresolved — no canonical attribution shown $15.100.3%12025
Amneal Pharmaceuticals LLC Unresolved — no canonical attribution shown $13.580.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$4,640.30226

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $245.99 13 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $241.92 14 2025
Source payment records
KESIMPTA
Normalized: kesimpta
Drug Novartis Pharmaceuticals Corporation $226.15 13 2025
Source payment records
BOTOX
Normalized: botox
Biological ABBVIE INC. $217.94 11 2025
Source payment records
VALTOCO
Normalized: valtoco
Drug Neurelis, Inc. $212.49 9 2025
Source payment records
LEQEMBI
Normalized: leqembi
Drug Biogen, Inc., Eisai Inc. $204.20 12 2025
Source payment records
VYVGART HYTRULO
Normalized: vyvgart hytrulo
Drug ARGENX US, INC. $196.83 8 2025
Source payment records
AUSTEDO XR
Normalized: austedo xr
Drug Teva Pharmaceuticals USA, Inc. $178.17 10 2025
Source payment records
VYEPTI
Normalized: vyepti
Biological Lundbeck LLC $176.09 9 2025
Source payment records
Fintepla
Normalized: fintepla
Drug UCB, Inc. $159.22 6 2025
Source payment records
PONVORY
Normalized: ponvory
Drug Vanda Pharmaceuticals Inc. $157.80 7 2025
Source payment records
QUTENZA
Normalized: qutenza
Drug Averitas Pharma Inc. $145.01 7 2025
Source payment records
Ocrevus Zunovo
Normalized: ocrevus zunovo
Biological Genentech USA, Inc. $140.84 7 2025
Source payment records
Dysport
Normalized: dysport
Drug Ipsen Biopharmaceuticals, Inc $138.90 7 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $134.92 6 2025
Source payment records
VUMERITY
Normalized: vumerity
Drug Biogen, Inc. $131.52 6 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Lundbeck LLC, Otsuka America Pharmaceutical, Inc. $117.32 7 2025
Source payment records
TYSABRI
Normalized: tysabri
Biological Biogen, Inc. $109.83 5 2025
Source payment records
Rystiggo
Normalized: rystiggo
Drug UCB, Inc. $103.28 4 2025
Source payment records
Nayzilam
Normalized: nayzilam
Drug UCB, Inc. $101.98 5 2025
Source payment records
FYCOMPA
Normalized: fycompa
Drug CATALYST PHARMACEUTICALS, INC. $100.11 5 2025
Source payment records
BRIUMVI
Normalized: briumvi
Drug TG Therapeutics, Inc. $95.77 4 2025
Source payment records
HYQVIA
Normalized: hyqvia
Biological Takeda Pharmaceuticals U.S.A., Inc. $94.62 5 2025
Source payment records
ZEPOSIA
Normalized: zeposia
Drug Celgene Corporation $87.77 6 2025
Source payment records
KISUNLA
Normalized: kisunla
Drug Lilly USA, LLC $85.33 5 2025
Source payment records
PANZYGA
Normalized: panzyga
Biological PFIZER INC. $83.53 4 2025
Source payment records
INGREZZA
Normalized: ingrezza
Drug Neurocrine BioSciences, Inc. $80.44 3 2025
Source payment records
DAXXIFY
Normalized: daxxify
Drug REVANCE THERAPEUTICS, INC. $76.11 1 2025
Source payment records
Hizentra
Normalized: hizentra
Biological CSL Behring $73.95 3 2025
Source payment records
DAYBUE
Normalized: daybue
Drug ACADIA Pharmaceuticals Inc $73.26 4 2025
Source payment records
Xeomin
Normalized: xeomin
Biological Merz Pharmaceuticals, LLC $67.32 3 2025
Source payment records
Symbravo
Normalized: symbravo
Drug Axsome Therapeutics, Inc. $58.80 3 2025
Source payment records
ACTHAR
Normalized: acthar
Biological Mallinckrodt Hospital Products Inc. $58.38 3 2025
Source payment records
EPIDIOLEX
Normalized: epidiolex
Drug JAZZ PHARMACEUTICALS INC. $57.69 4 2025
Source payment records
SKYCLARYS
Normalized: skyclarys
Drug Biogen, Inc. $49.81 2 2025
Source payment records
Radicava
Normalized: radicava
Drug Tanabe Pharma America, Inc. $47.24 2 2025
Source payment records
ULTOMIRIS
Normalized: ultomiris
Biological Alexion Pharmaceuticals, Inc. $34.12 2 2025
Source payment records
WAINUA
Normalized: wainua
Drug AstraZeneca Pharmaceuticals LP $32.00 1 2025
Source payment records
OCTAGAM IMMUNE GLOBULIN (HUMAN)
Normalized: octagam immune globulin human
Biological, Drug Octapharma USA, Inc., PFIZER INC. $26.15 2 2025
Source payment records
VYALEV
Normalized: vyalev
Drug ABBVIE INC. $24.55 2 2025
Source payment records
Briviact
Normalized: briviact
Drug UCB, Inc. $24.12 1 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $23.44 1 2025
Source payment records
INBRIJA
Normalized: inbrija
Drug Merz Pharmaceuticals, LLC $22.80 1 2025
Source payment records
Gamunex-C
Normalized: gamunex c
Biological Grifols USA, LLC $22.67 1 2025
Source payment records
UPLIZNA
Normalized: uplizna
Biological Amgen Inc. $22.12 1 2025
Source payment records
CREXONT
Normalized: crexont
Drug Amneal Pharmaceuticals LLC $13.58 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
EPIDIOLEX
epidiolex
2025 Epidiolex 2024 47
Beneficiary count suppressed
exact normalized Medicare Part D
NURTEC ODT
nurtec odt
2025 Nurtec Odt 2024 59 exact normalized Medicare Part D
QULIPTA
qulipta
2025 Qulipta 2024 22
Beneficiary count suppressed
exact normalized Medicare Part D
REXULTI
rexulti
2025 Rexulti 2024 29
Beneficiary count suppressed
exact normalized Medicare Part D
UBRELVY
ubrelvy
2025 Ubrelvy 2024 35 exact normalized Medicare Part D

The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.

Analysis 2 · Same-company prescribing overlap

Drugs reported in other payments from the same company that also appear in Medicare Part D

This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 QULIPTA
open payments reported associated product
CMS Open Payments — General Payments
298617 supporting records · 58957 recipient NPIs · example record 1201352530
Qulipta · 2024
Exact normalized brand match · 1 Part D row
22 suppressed by CMS
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 UBRELVY
open payments reported associated product
CMS Open Payments — General Payments
299803 supporting records · 61203 recipient NPIs · example record 1201352530
Ubrelvy · 2024
Exact normalized brand match · 1 Part D row
35 13
CSL Behring
Exact reporting entity; no affiliate inference
2025 Privigen
open payments reported associated product
CMS Open Payments — General Payments
464 supporting records · 289 recipient NPIs · example record 1232339064
Privigen · 2024
Exact normalized brand match · 1 Part D row
16 suppressed by CMS
JAZZ PHARMACEUTICALS INC.
Exact reporting entity; no affiliate inference
2025 EPIDIOLEX
open payments reported associated product
CMS Open Payments — General Payments
10990 supporting records · 3626 recipient NPIs · example record 1234297758
Epidiolex · 2024
Exact normalized brand match · 1 Part D row
47 suppressed by CMS
Lundbeck LLC
Exact reporting entity; no affiliate inference
2025 REXULTI
open payments reported associated product
CMS Open Payments — General Payments
71829 supporting records · 25812 recipient NPIs · example record 1251759986
Rexulti · 2024
Exact normalized brand match · 1 Part D row
29 suppressed by CMS
Otsuka America Pharmaceutical, Inc.
Exact reporting entity; no affiliate inference
2025 NUEDEXTA
open payments reported associated product
CMS Open Payments — General Payments
393 supporting records · 285 recipient NPIs · example record 1227268901
Nuedexta · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
Otsuka America Pharmaceutical, Inc.
Exact reporting entity; no affiliate inference
2025 REXULTI
open payments reported associated product
CMS Open Payments — General Payments
160756 supporting records · 46288 recipient NPIs · example record 1227267708
Rexulti · 2024
Exact normalized brand match · 1 Part D row
29 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 NURTEC ODT
open payments reported associated product
CMS Open Payments — General Payments
217574 supporting records · 54025 recipient NPIs · example record 1228794063
Nurtec Odt · 2024
Exact normalized brand match · 1 Part D row
59 13
SK Life Science, Inc.
Exact reporting entity; no affiliate inference
2025 XCOPRI
open payments reported associated product
CMS Open Payments — General Payments
1992 supporting records · 782 recipient NPIs · example record 1252276115
Xcopri · 2024
Exact normalized brand match · 1 Part D row
22 suppressed by CMS
Teva Pharmaceuticals USA, Inc.
Exact reporting entity; no affiliate inference
2025 AUSTEDO
open payments reported associated product
CMS Open Payments — General Payments
28 supporting records · 15 recipient NPIs · example record 1247249192
Austedo · 2024
Exact normalized brand match · 1 Part D row
47 suppressed by CMS

These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.

Public Medicare Part D data

Provider-and-drug rows loaded for 2024

BrandGenericClaimsBeneficiaries
GabapentinGabapentin396101
LevetiracetamLevetiracetam34881
Donepezil HclDonepezil Hcl29189
LamotrigineLamotrigine19242
Memantine HclMemantine Hcl18646
PregabalinPregabalin17040
Amitriptyline HclAmitriptyline Hcl15738
Carbidopa-LevodopaCarbidopa/Levodopa15335
BaclofenBaclofen13135
Propranolol Hcl ErPropranolol Hcl13137
Duloxetine HclDuloxetine Hcl10822
TopiramateTopiramate10529
LacosamideLacosamide9118
Sumatriptan SuccinateSumatriptan Succinate9029
Quetiapine FumarateQuetiapine Fumarate8629
ClonazepamClonazepam8315
Tizanidine HclTizanidine Hcl7826
Ropinirole HclRopinirole Hcl6815
DiazepamDiazepam6444
Nurtec OdtRimegepant Sulfate5913
Aimovig AutoinjectorErenumab-Aooe5611
PrimidonePrimidone5417
ZonisamideZonisamide4813
AustedoDeutetrabenazine47suppressed
EpidiolexCannabidiol (Cbd)47suppressed
RivastigmineRivastigmine Tartrate43suppressed
Pyridostigmine BromidePyridostigmine Bromide4215
OxcarbazepineOxcarbazepine4011
RizatriptanRizatriptan Benzoate40suppressed
AptiomEslicarbazepine Acetate38suppressed
ClopidogrelClopidogrel Bisulfate36suppressed
Nortriptyline HclNortriptyline Hcl36suppressed
Propranolol HclPropranolol Hcl3612
UbrelvyUbrogepant3513
Pramipexole DihydrochloridePramipexole Di-Hcl34suppressed
Dalfampridine ErDalfampridine33suppressed
Mycophenolate MofetilMycophenolate Mofetil33suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl3214
CarbamazepineCarbamazepine31suppressed
Lamotrigine ErLamotrigine30suppressed
RexultiBrexpiprazole29suppressed
Memantine Hcl ErMemantine Hcl28suppressed
PrednisonePrednisone26suppressed
PhenobarbitalPhenobarbital25suppressed
Ajovy AutoinjectorFremanezumab-Vfrm24suppressed
GammakedImmune Globul G/Gly/Iga Avg 4623suppressed
TrileptalOxcarbazepine23suppressed
Buspirone HclBuspirone Hcl22suppressed
QuliptaAtogepant22suppressed
XcopriCenobamate22suppressed
Carbidopa-Levodopa ErCarbidopa/Levodopa21suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine21suppressed
MethylprednisoloneMethylprednisolone2119
Emgality PenGalcanezumab-Gnlm20suppressed
GammaplexImmun Glob G(Igg)/Gly/Iga 0-5020suppressed
Divalproex Sodium ErDivalproex Sodium19suppressed
Escitalopram OxalateEscitalopram Oxalate17suppressed
FelbamateFelbamate16suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended16suppressed
PrivigenImmun Glob G(Igg)/Pro/Iga 0-5016suppressed
Sodium Chloride0.9 % Sodium Chloride16suppressed
RivastigmineRivastigmine15suppressed
Citalopram HbrCitalopram Hydrobromide14suppressed
LorazepamLorazepam13suppressed
OctagamImmun Globg(Igg)/Malt/Iga Ov5013suppressed
NuedextaDextromethorphan Hbr/Quinidine12suppressed
Trokendi XrTopiramate12suppressed
Wellbutrin XlBupropion Hcl12suppressed
Carbamazepine ErCarbamazepine11suppressed
EntacaponeEntacapone11suppressed
Kesimpta PenOfatumumab11suppressed
Trazodone HclTrazodone Hcl11suppressed

Timeline

Payment and prescribing data by year

Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025 $4,640.30 · 226 records ABBVIE INC. ACTHAR, AUSTEDO XR, BOTOX, BRIUMVI, Briviact, CREXONT, DAXXIFY, DAYBUE, Dysport, EPIDIOLEX, FYCOMPA, Fintepla, Gamunex-C, HYQVIA, Hizentra, INBRIJA, INGREZZA, KESIMPTA, KISUNLA, LEQEMBI, NURTEC ODT, Nayzilam, OCTAGAM IMMUNE GLOBULIN (HUMAN), Ocrevus Zunovo, PANZYGA, PONVORY, QULIPTA, QUTENZA, REXULTI, Radicava, Rystiggo, SKYCLARYS, Symbravo, TYSABRI, UBRELVY, ULTOMIRIS, UPLIZNA, VALTOCO, VUMERITY, VYALEV, VYEPTI, VYVGART HYTRULO, WAINUA, Xeomin, ZAVZPRET, ZEPOSIA 10
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
CMS Open Payments — General Payments 2025 2026-06-30 Original source
Medicare Part D Prescribers by Provider and Drug 2024 2026-05-06 Original source
NPPES Data Dissemination V2 current / reference data 2026-08-10 Original source

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

Full methodology · Questions & answers · Report a possible error