“…Among the 35 eligible studies were 27 full-text articles ( 6 , 11 , 12 , 15 , 55–77 ) and 8 conference abstracts ( 78–85 ). Prognostic data were extracted from 21 studies, of which 2 were conference abstracts ( 6 , 11 , 15 , 57 , 58 , 60 , 61 , 63 , 64 , 66–73 , 75 , 77 , 80 , 81 ). The predictive value of the CMSs was assessed in 16 studies and 6 conference abstracts ( 12 , 15 , 55–57 , 59 , 62 , 64–67 , 69 , 72–74 , 76 , 78 , 79 , 82–85 ).…”