Using group-sequential analysis to achieve the optimal sample size.
Rogers
Michael S
MS
Department of Obstetrics and Gynaecology, Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, SAR, China.
Chang
Allan M Z
AM
Todd
Susan
S
D003627:Data Interpretation, Statistical; D016032:Randomized Controlled Trials as Topic; D018401:Sample Size; D012494:Sampling Studies