[1] Fdn Inst Invest Serv Sanitario IISS, Valencia, Spain
[2] CIBER Epidemiol & Publ Hlth CIBERESP, Barcelona, Spain
[3] Inst Invest Biomed IIB St Pau, Barcelona, Spain
[4] Univ Las Palmas Gran Canaria, Dept Quantitat Methods Econ, Las Palmas Gran Canaria, Spain
[5] Agencia Salut Publ Barcelona, Barcelona, Spain
[6] Inst Catala Oncol, Canc Prevent & Control Program, Tobacco Control Unit, Lhospitalet De Llobregat, Spain
[7] Inst Invest Biomed Bellvitge IDIBELL, Canc Control & Prevent Grp, Lhospitalet De Llobregat, Spain
[8] Univ Barcelona, Dept Clin Sci, Barcelona, Spain