Authors: C Navarro; M D Chirlaque; M J Tormo; D Pérez-Flores; M Rodríguez-Barranco; A Sánchez-Villegas; A Agudo; G Pera; P Amiano; M Dorronsoro; N Larrañaga; J R Quirós; E Ardanaz; A Barricarte; C Martínez; M J Sánchez; A Berenguer; C A González Journal: J Epidemiol Community Health Date: 2006-07 Impact factor: 3.710