“…This means there was no interview or further additional information sought; 36 out of 68 studies (53%) used this method for data collection. 12 , 13 , 18 , 19 , 21 , 23 , 24 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 36 , 37 , 38 , 42 , 43 , 44 , 45 , 47 , 48 , 52 , 55 , 56 , 61 , 67 , 71 , 73 , 74 , 75 , 77 Twenty-six studies (38%) collected additional data for the purpose of the review 3 , 10 , 11 , 14 , 15 , 16 , 17 , 25 , 35 , 39 , 41 , 46 , 49 , 50 , 57 , 58 , 59 , 60 , 62 , 63 , 64 , 65 , 66 , 69 , 70 , 72 ; for example, by conducting interviews with mothers, health care providers, and family members, by requesting contextual background information about the facilities and mothers, and by carrying out additional tests (e.g. macroscopically examining placenta and cords) th...…”