Use of evidence in WHO recommendations.
Quigley
Eamonn M M
EM
Fried
Michael
M
Krabshuis
Justus H
JH
D003906:Developing Countries; D004932:Esophageal and Gastric Varices / Q000628:therapy*; D005762:Gastroenterology / Q000592:standards*; D006801:Humans; D017410:Practice Guidelines as Topic; D014944:World Health Organization