“…Two studies -one randomized controlled trial (51) and one functional magnetic resonance study (57) -included 100 women or fewer. In nine studies, the number of participants ranged between 246 and 389 (39,41,43,45,46,48,50,58,59), while five studies included 745-1774 women (44,47,52,53,55), and six studies enrolled more than 2020 women (40,42,49,54,56,60). Of these, three studies had more than 20,000 participants.…”