Authors' reply: Letter to the Editor: Preference option randomized design (PORD) for comparative effectiveness research: Statistical power for testing comparative effect, preference effect, selection effect, intent-to-treat effect, and overall effect (SMMR, Vol. 28, Issue 2, 2019).
Moonseong HeoPaul MeissnerAlain H LitwinM Diane McKeeAlison KaraszEarle C ChambersMing-Chin YehJudith Wylie-RosettPublished in: Statistical methods in medical research (2018)