Cohort Profile: the INMA--INfancia y Medio Ambiente--(Environment and Childhood) Project.

Centre for Research in Environmental Epidemiology, 08003 Barcelona, Catalonia, Spain, Municipal Institute of Medical Research (IMIM), 08003 Barcelona, Catalonia, Spain, CIBER Epidemiologı́a y Salud Pública (CIBERESP), 08003 Barcelona, Spain, Division of Environment and Health, Centre for Public Health Research-CSISP, 46020 Valencia, Spain, School of Nursing, University of Valencia, 46010 Valencia, Spain, Departamento de Sanidad Gobierno Vasco, Laboratorio Normativo de Salud Pública, 48010 Bilbao, Spain, Laboratory of Medical Investigations, San Cecilio University Hospital, University of Granada, 18012 Granada, Spain, Department of Environmental Chemistry, IDÆA-CSIC, 08034 Barcelona, Catalonia, Spain, Departamento de Sanidad Gobierno Vasco, Subdirección de Salud Pública de Guipúzcoa, 20013 San Sebastián, Spain, Departmento de Salud Pública, Universidad Miguel Hernández, 03550 San Juan de Alicante, Spain, University of Oviedo, 33006 Oviedo, Spain, IB-Salut Menorca Health Area, 07701 Mao, Menorca, Balearic Islands, Spain, Fundació Caubet-CIMERA, 07110 Bunyola, Mallorca, Balearic Islands, Spain and Pompeu Fabra University, 08003 Barcelona, Catalonia, Spain