Clare Relton, David Torgerson, Alicia O’Cathain, Jon Nicholl
Relton C, Torgerson D, OâCathain A, Nicholl J.
Rethinking pragmatic randomised controlled trials: introducing the “cohort multiple randomised controlled trial” design
BMJ 2010; 340 :c1066
doi:10.1136/bmj.c1066