“…Less frequently used data collection methods included structured interviews [ 100 , 113 , 123 ] and self-completed diaries reporting on sex practices [ 54 ] and drug and alcohol use [ 56 ]. Twenty four studies utilised a combination of clinical testing and questionnaire data [ 41 , 42 , 44 , 46 , 48 , 67 , 75 , 79 , 80 , 85 , 87 , 89 , 91 , 105 , 106 , 109 , 110 , 111 , 112 , 120 , 127 , 130 , 131 , 132 ]. Sixteen studies utilised clinical testing data alone [ 43 , 73 , 78 , 82 , 83 , 84 , 86 , 92 , 94 , 95 , 96 , 101 , 104 , 124 , 126 , 128 ].…”