“…The study selection process and exclusion criteria are described in Fig 1. Of the 128 studies identified initially, 120 were excluded based on review of the title, abstract or full text. The reasons for excluding 17 studies [33,34,[46][47][48][49][50][51][52][53][54][55][56][57][58][59][60] after full-text review, are provided in Fig 1. The remaining eight studies met the inclusion criteria and were included in the meta-analysis [35,37,38,40,41,43,61,62].…”