PubMed/MEDLINE
National Institute for Health and Care Excellence (NICE)
Cochrane
https://www.mayoclinic.org
https://www.tripdatabase.com/
BMC
BMC
UpToDate,
ScienceDirect,
Cochrane,
CINAHL Ebsco,
EMBASE via OVID or Els,
Library and Information Science Abstracts (LISA),
Clinical Information Access Portal (CΙAP)
proquest
scopus els
OVID
Wil