Table 2.

Jadad quality scale of the included studies.

Study	Randomization	Blinding	An account of all patients	Total score
Schnadig et al. [2015]	1	2	0	3
Rapoport et al. [2015]	2	2	1	5
Rapoport et al. [2015], HEC1	2	2	1	5
Rapoport et al. [2015], HEC2	2	2	1	5
Gralla et al. [2014]	2	2	1	5
Grunberg et al. [2009]	2	2	1	5
Roila et al. [2009]	2	2	1	5
Schmitt et al. [2014]	2	2	1	5
Hu et al. [2014]	2	2	1	5
Wenzell et al. [2013]	2	0	1	3
Stiff et al. [2013]	2	2	1	5
Takahashi et al. [2010]	2	2	1	5
De Wit et al. [2003]	2	2	1	5
Schmoll et al. [2006]	2	2	1	5
Hesketh et al. [2003]	2	2	1	5
Poli-Bigelli et al. [2003]	2	2	1	5
Herrington et al. [2008]	2	2	1	5
Saito et al. [2014]	2	2	1	5
Ando et al. [2015]	2	0	1	3