Reference

The sources VITA can cite

VITA does not answer from an open crawl of the web. Every source it is permitted to cite comes from the registry below — 79 named organisations across three trust tiers, plus the domain families listed at the end. Anything outside it is not cited.

This page is generated from the same registry the answer pipeline enforces, so it cannot drift from what the product actually does.

What is never cited

Forums, social platforms, user-generated Q&A and content farms are never cited.

Tier 1 — Health agencies and official clinical guidance

58 sources

WHO
who.int
global
ClinicalTrials.gov
clinicaltrials.gov
global
WHO ICTRP
trialsearch.who.int
global
FDA
fda.gov
US
CDC
cdc.gov
US
NIH
nih.gov
US
MedlinePlus
medlineplus.gov
US
DailyMed
dailymed.nlm.nih.gov
US
NCI
cancer.gov
US
HHS
hhs.gov
US
USPSTF
uspreventiveservicestaskforce.org
US
American Heart Association
heart.org
US
American Cancer Society
cancer.org
US
Alzheimer's Association
alz.org
US
American Academy of Pediatrics
healthychildren.org
US
American College of Radiology
acr.org
US
MotherToBaby
mothertobaby.org
US
ACOG
acog.org
US
RCOG
rcog.org.uk
UK
American Diabetes Association
diabetes.org
US
APTA
apta.org
US
Chartered Society of Physiotherapy
csp.org.uk
UK
NHS
nhs.uk
UK
NHS inform
nhsinform.scot
UK
NICE
nice.org.uk
UK
UK Government
gov.uk
UK
emc
medicines.org.uk
UK
EMA
ema.europa.eu
EU
ECDC
ecdc.europa.eu
EU
European Union
europa.eu
EU
EFSA
efsa.europa.eu
EU
RKI
rki.de
DE
BfArM
bfarm.de
DE
IQWiG
gesundheitsinformation.de
DE
ANSM
ansm.sante.fr
FR
HAS
has-sante.fr
FR
AEMPS
aemps.gob.es
ES
AIFA
aifa.gov.it
IT
ISS
iss.it
IT
RIVM
rivm.nl
NL
Folkhälsomyndigheten
folkhalsomyndigheten.se
SE
Sundhedsstyrelsen
sst.dk
DK
THL
thl.fi
FI
FHI
fhi.no
NO
Health Canada
canada.ca
CA
Alzheimer Society of Canada
alzheimer.ca
CA
TGA
tga.gov.au
AU
healthdirect
healthdirect.gov.au
AU
Australian Dept. of Health
health.gov.au
AU
Medsafe
medsafe.govt.nz
NZ
NZ Ministry of Health
health.govt.nz
NZ
PMDA
pmda.go.jp
JP
MHLW
mhlw.go.jp
JP
NIPH
niph.go.jp
JP
MFDS
mfds.go.kr
KR
KDCA
kdca.go.kr
KR
TİTCK
titck.gov.tr
TR
T.C. Sağlık Bakanlığı
saglik.gov.tr
TR

Tier 2 — Peer-reviewed medicine and systematic reviews

8 sources

Cochrane
cochranelibrary.com
global
PubMed
ncbi.nlm.nih.gov
global
NEJM
nejm.org
global
The Lancet
thelancet.com
global
The BMJ
bmj.com
global
JAMA
jamanetwork.com
global
AHA Journals
ahajournals.org
US
Cleveland Clinic Journal of Medicine
ccjm.org
US

Tier 3 — Major clinical publishers

13 sources

Mayo Clinic
mayoclinic.org
US
Cleveland Clinic
my.clevelandclinic.org
US
Johns Hopkins Medicine
hopkinsmedicine.org
US
AAFP
aafp.org
US
March of Dimes
marchofdimes.org
US
ADAA
adaa.org
US
National Council on Aging
ncoa.org
US
Merck Manual / MSD Manual
merckmanuals.com
US
Children's Hospital of Philadelphia
chop.edu
US
Harvard Health Publishing
health.harvard.edu
US
The Pharmaceutical Journal
pharmaceutical-journal.com
UK
Tommy's
tommys.org
UK
Royal Women's Hospital
thewomens.org.au
AU

Accepted domain families

Beyond the named list, these domain families are accepted as Tier 1 without being individually listed.

.gov and .gov.<country> — national and state government health domains
.go.<country> — government domains in Japan, Korea and others
.gouv.fr — French government domains
NHS domains, including nhs.uk and NHS Scotland boards on .scot

How current this is

Guidance is refreshed on a schedule and shown with its date. For pages retrieved by search we show the retrieval date, not the publisher's own revision date.

No endorsement

These organisations are cited as sources of published guidance. They do not endorse, review, or have any relationship with Vita.

VITA explains published health information in plain language. It does not diagnose, prescribe or replace professional medical care. See the medical disclaimer.