Article PubMed
Journal of clinical epidemiology  (2017)

GRADE guidelines 17=> assessing the risk of bias associated with missing participant outcome data in a body of evidence.

Guyatt, Gordon H; Ebrahim, Shanil; Alonso-Coello, Pablo; Johnston, Bradley C; Mathioudakis, Alexander G; Briel, Matthias; Mustafa, Reem A; Sun, Xin; Walter, Stephen D; Heels-Ansdell, Diane; Neumann, Ignacio; Kahale, Lara A; Iorio, Alfonso; Meerpohl, Joerg; Schünemann, Holger J; Akl, Elie A