Randomized controlled trials in surgery: Issues and problems.
McLeod
R S
RS
Department of Surgery, University of Toronto, Ontario, Canada.
Wright
J G
JG
Solomon
M J
MJ
Hu
X
X
Walters
B C
BC
Lossing
A l
Al
D005240:Feasibility Studies; D013502:General Surgery; D006801:Humans; D016032:Randomized Controlled Trials as Topic / Q000379:methods