Underpowered studies.
Lilford
R
R
Department of Public Health and Epidemiology, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
Stevens
A J
AJ
D002986:Clinical Trials as Topic / Q000592:standards*; D006801:Humans; D017594:Publication Bias; D015203:Reproducibility of Results; D018401:Sample Size