Affiliation: | 1. Department of Preventive Medicine and Public Health, School of Medicine, Autonoma University, Madrid, Spain Ciber of Epidemiology and Public Health (CIBERESP), Madrid, Spain;2. Department of Environmental Health Sciences, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, MD;3. Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD |