[1] Univ Toulouse 3, INSERM, U558, Fac Med, F-31073 Toulouse, France
[2] Univ Bergen, Fac Psychol, Res Ctr Hlth Promot, N-5020 Bergen, Norway
[3] Univ Copenhagen, Fac Hlth Sci, Dept Publ Hlth, DK-1168 Copenhagen, Denmark
[4] Natl Univ Ireland, Dept Hlth Promot, Hlth Promot Res Ctr, Galway, Ireland
[5] Univ Turin, Dept Publ Hlth, I-10124 Turin, Italy
[6] Univ Ghent, Dept Publ Hlth, FWO Flanders, B-9000 Ghent, Belgium
[7] Univ Siena, Fac Med, I-53100 Siena, Italy
[8] Istanbul Univ, Cerrahpasa Med Fac, Dept Pediat, Istanbul, Turkey
[9] Univ So Denmark, Natl Inst Publ Hlth, Odense, Denmark
[10] Univ Med Ctr Hamburg Eppendorf, Dept Psychosomat Children & Adolescents, Ctr Obstet & Pediat, Hamburg, Germany
[11] Univ Edinburgh, Moray House Sch Educ, CAHRU, Edinburgh EH8 9YL, Midlothian, Scotland
[12] Karolinska Inst, Dept Publ Hlth Sci, S-10401 Stockholm, Sweden