[1] Pompeu Fabra Univ, Publ Hlth Agcy Barcelona, Barcelona, Spain
[2] Network Epidemiol & Publ Hlth CIBERESP, Biomed Res Ctr, Barcelona, Spain
[3] Inst Biomed Res IIB St Pau, Barcelona, Spain
[4] Univ Pompeu Fabra, Dept Expt & Hlth Sci, Barcelona, Spain