“…All 13 RCTs had been peer reviewed and published as journal articles, [22][23][24][26][27][28][29][30][31][32][33] a PhD thesis, 25 or abstracts. 34 Four trials were conducted in the US, 25,27,29,31 three in England, UK, 28,33,34 two in Australia, 22,26 one in Canada, 23 one in India, 30 one in Japan, 32 and one in Taiwan. 24 The total population of the combined studies was 1734 eligible participants, with follow-up data provided by 1307 participants who were included in the primary metaanalysis.…”