Reporting missing participant data in randomised trials: systematic survey of the methodological literature and a proposed guide
Akl, Elie A; Shawwa, Khaled; Kahale, Lara A.; Agoritsas, Thomas; Brignardello Petersen, Romina; Busse, Jason W.; Carrasco Labra, Alonso; Ebrahim, Shanil; Johnston, Bradley C.; Neumann, Ignacio; Solà, Iván; Sun, Xin; Vandvik, Per; Zhang, Yuqing; Alonso Coello, Pablo; Guyatt, Gordon H. (BMJ Publishing Group, 2015)