Affiliation: | 1. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA;2. Welch Center for Epidemiology, Prevention and Clinical Research, Johns Hopkins University, Baltimore, Maryland, USA;3. Division of General Internal Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA;4. Department of Surgery, Medicine and Social Sciences, Social and Cardiovascular Epidemiology Research Group, School of Medicine, University of Alcala, Madrid, Spain;5. Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA;6. Department of Family and Preventive Medicine, University of California San Diego School of Medicine, California, USA |