AHRQ series commentary 1: rating the evidence in comparative effectiveness reviews.
Falck-Ytter
Yngve
Y
Division of Gastroenterology, Case and VA Medical Center, Case Western Reserve University, Cleveland, OH 44106, USA.
Schünemann
Holger
H
Guyatt
Gordon
G
D019317:Evidence-Based Medicine / Q000379:methods* / Q000592:standards; D006801:Humans; D017063:Outcome Assessment, Health Care / Q000379:methods; D012196:Review Literature as Topic; D014481:United States; D016270:United States Agency for Healthcare Research and Quality