Authors: Clarisse Héry; Laufey Tryggvadóttir; Thorgeir Sigurdsson; Elínborg Olafsdóttir; Bardur Sigurgeirsson; Jon G Jonasson; Jon H Olafsson; Mathieu Boniol; Graham B Byrnes; Jean-François Doré; Philippe Autier Journal: Am J Epidemiol Date: 2010-09-02 Impact factor: 4.897