WHO leads global effort on systematic reviews.
Villar
J
J
Betrán
A P
AP
Gülmezoglu
A M
AM
Say
L
L
D016208:Databases, Factual; D019317:Evidence-Based Medicine / Q000379:methods / Q000592:standards*; D006801:Humans; D015201:Meta-Analysis as Topic; D012196:Review Literature as Topic; D014944:World Health Organization