TY - JOUR A1 - Spoerri, A. A1 - Zwahlen, M. A1 - Egger, M. A1 - Bopp, M. T1 - The Swiss National Cohort: a unique database for national and international researchers Y1 - 2010 DO - 10.1007/s00038-010-0160-5 JF - International Journal of Public Health VL - 55 IS - 4 ER -