Bias in Assignment to Clinical Trials
BRITISH MEDICAL JOURNAL 1994 April 2; 308(6933): 920-921
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Sacristan, J.A.; Soto, J.; Alanis, A. (1992-08-08)
Gillman, Matthew W. (1984-06-14)
Chalmers, Thomas C.; Celano, Paul; Sacks, Henry S.; Smith, Harry (1983-12-01)The suggestion that bias in the assignment of patients to treatment or control groups may be an important determinant of the outcome of clinical trials was studied through a statistical analysis of 145 papers on controlled trials ...