Study	Reason for exclusion
Bernaudin 2007	Not a RCT/quasi‐RCT
Hongeng 2004	Not a RCT/quasi‐RCT
Horan 2005	Not a RCT/quasi‐RCT
Iannone 2003	Not a RCT/quasi‐RCT
Locatelli 2003	Not a RCT/quasi‐RCT
Vermylen 2000	Not a RCT/quasi‐RCT
Walters 1995	Not a RCT/quasi‐RCT
Walters 1996	Not a RCT/quasi‐RCT
Walters 2001	Not a RCT/quasi‐RCT
Weinberg 2001	Not a RCT/quasi‐RCT
Yalcin 2017	Wrong intervention, looking at the effectiveness of defibrotide prophylaxis on acute graft versus host disease

RCT: randomized controlled trial