“…Several large randomized controlled trials (5,6,(9)(10)(11) and key reviews (7,8) have addressed the question of whether expectant or active management is preferable. These five trials, which have been the subject of a meta-analysis in the Cochrane Library (1), are commonly named according to their geographic sites, namely, Abu Dhabi (5), Brighton (10), Bristol (6), Dublin (11), and Hinchingbrooke (9).…”