[1] Centre for Research in Environmental Epidemiology (CREAL),Departamento de Salud Publica
[2] Hospital del Mar Medical Research Institute (IMIM),Public Health Division of Gipuzkoa
[3] Universitat Pompeu Fabra (UPF),Department of Preventive Medicine and Public Health
[4] CIBER Epidemiología y Salud Pública (CIBERESP),undefined
[5] Hospital de Sabadell,undefined
[6] Corporació Sanitària Parc Taulí,undefined
[7] Institut Universitari ParcTaulí-UAB,undefined
[8] Universitat Autònoma de Barcelona,undefined
[9] Campus d'Excelència Internacional Bellaterra,undefined
[10] Centre for Public Health Research (CSISP-FISABIO),undefined
[11] Universidad Miguel Hernandez,undefined
[12] Basque Government,undefined
[13] Health Research Institute Biodonostia,undefined
[14] Clinical Chemistry Unit,undefined
[15] Public Health Laboratory of Bilbao,undefined
[16] Hospital San Agustín,undefined
[17] University of Oviedo,undefined