“…In accordance with the WHO M&E framework [ 40 ], we identified 6 types of research designs across the selected articles ( Table 1 ; Multimedia Appendix 6 [ 29 , 42 - 86 ]): MT technology assessments (study type 1; 23/46, 50%) [ 29 , 43 - 46 , 48 , 50 - 52 , 54 - 59 , 62 , 68 , 72 - 74 , 77 , 85 , 86 ], technology stability standards (study type 2; 3/46, 7%) [ 66 , 71 , 81 ], prototype demonstrations (study type 3; 8/46, 17%) [ 61 , 63 , 69 , 79 , 80 , 82 - 84 ], usability studies (study type 4; 4/46, 9%) [ 42 , 47 , 64 , 65 ], economic evaluations (study type 5; 4/46, 9%) [ 49 , 70 , 75 , 78 ], and implementation research (study type 6; 4/46, 9%) [ 53 , 60 , 67 , 76 ]. Nearly three-quarters (34/46, 74%) of the articles [ 43 - 46 , 48 , 50 - 52 , 54 - 59 , 61 - 63 , 66 , 68 , 69 , 71 - 74 , 76 , 79 - 86 ] conducted monitoring studies (ie, study types 1, 2, and 3), whereas...…”