Randomized trials or observational tribulations?
Pocock
S J
SJ
Elbourne
D R
DR
D016022:Case-Control Studies; D015331:Cohort Studies; D006801:Humans; D015201:Meta-Analysis as Topic; D016032:Randomized Controlled Trials as Topic; D012107:Research Design; D013812:Therapeutics; D016896:Treatment Outcome