“…Concerning the perspective, 22 of the studies (42%) applied the societal perspective [ 30 , 38 , 40 – 43 , 45 , 48 , 49 , 53 – 57 , 59 , 63 , 66 , 67 , 69 , 71 – 73 , 76 ]. Eighteen studies conducted an evaluation considering both positions [ 26 – 29 , 31 , 32 , 34 , 37 , 39 , 50 , 51 , 58 , 62 , 64 , 65 , 74 , 75 , 77 ] and 12 focused on the healthcare perspective and calculated societal costs separately [ 33 , 35 , 36 , 44 , 46 , 47 , 52 , 60 , 61 , 65 , 70 , 78 ]. One study did not explain which perspective was used [ 68 ].…”