“…Ten studies (83%) originated from Europe [6,38,39,40,41,42,43,44,45,46], mostly from the UK [38,40,41,45,46] and France [6,39,44]. Eight were prospective in study design [6,38,39,41,44,45,47,48]. Most studies [6,38,39,40,43,46,47,48] featured an ITT analysis.…”