Adequacy and reporting of allocation concealment: review of recent trials published in four general medical journals.
Hewitt
Catherine
C
York Trials Unit, Department of Health Sciences, University of York, York YO10 5DD. ceh121@york.ac.uk
Hahn
Seokyung
S
Torgerson
David J
DJ
Watson
Judith
J
Bland
J Martin
JM
D010506:Periodicals as Topic; D011897:Random Allocation; D016032:Randomized Controlled Trials as Topic / Q000379:methods / Q000592:standards*