A highly significant difference in baseline characteristics: the play of chance or evidence of a more selective game?
Fayers
Peter M
PM
Department of Public Health, University of Aberdeen Medical School, Foresterhill, Aberdeen, AB25 2ZD, UK. P.Fayers@abdn.ac.uk
King
Madeleine
M
D005260:Female; D006801:Humans; D018579:Patient Selection; D016032:Randomized Controlled Trials as Topic / Q000592:standards; D012107:Research Design; D035842:Research Subjects