Affiliation: | 1. National Institute for Health and Welfare, Environmental Health Department, Kuopio, Finland;2. Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain;3. Hospital del Mar Research Institute (IMIM), Barcelona, Spain;4. CIBER Epidemiología y Salud Pública (CIBERESP), Spain;5. Institute for Risk Assessment Sciences, Department of Environmental Epidemiology, Utrecht University, Utrecht, the Netherlands;6. The University of Tulsa, Indoor Air Program, Oklahoma, USA |