Study	Reason for exclusion
Alijani 1987	Wrong intervention: compared 2 cold storage solutions
Baatard 1993	Wrong intervention: compared 2 cold storage solutions
Guarrera 2004	Wrong intervention: compared 2 solutions for MP
Guarrera 2004a	Wrong intervention: compared 2 solutions for MP
Lodge 1993	Wrong intervention: compared 2 types of reflush solutions
Polyak 1998	Wrong intervention: compared the type of additive used in MP
Polyak 2002	Wrong intervention: compared the type of additive used in MP
Tisone 1999	Wrong intervention: compared gravity to high pressure perfusion
Wamser 1990	Wrong intervention: compared 2 cold storage solutions
Wszola 2013	Wrong intervention: compared 2 MP techniques

MP ‐ machine perfusion