TY - JOUR A1 - Goldberg, Marcel A1 - Chastang, Jean François A1 - Leclerc, Annette A1 - Zins, Marie A1 - Bonenfant, Sébastien A1 - Bugel, Isabelle A1 - Kaniewski, Nadine A1 - Schmaus, Annie A1 - Niedhammer, Isabelle A1 - Piciotti, Michèle A1 - Chevalier, Anne A1 - Godard, Catherine A1 - Imbernon, Ellen T1 - Socioeconomic, Demographic, Occupational, and Health Factors Associated with Participation in a Long-term Epidemiologic Survey: A Prospective Study of the French GAZEL Cohort and Its Target Population Y1 - 2001 DO - 10.1093/aje/154.4.373 JF - American Journal of Epidemiology VL - 154 IS - 4 SP - 373 EP - -384 ER -