“…Five studies were conducted in the USA (24,(42)(43)(44)53), one in Japan (51) and the remaining eight in Europe (41,(45)(46)(47)(48)(49)(50). Among European studies, three were conducted in the Netherlands (47,48,50), two in the UK (46,52), and one in three countries (Greece, Spain and Sweden) (41). Furthermore, three studies presented different parts of their results in distinct publications: (i) Wijsman et al (50,54,55); (ii) van het Reve et al (49,56,57); and (iii) Peels et al (47,(58)(59)(60)(61)(62).…”