Institution: | 1. Biostatistics Division, College of Public Health, Ohio State University, Columbus, OH, USA;2. Desautels Faculty of Management, McGill University, Montreal, Canada;3. Pulmonary and Critical Care Medicine Section, Medical Service, VA Boston Healthcare System, USA;4. Channing Laboratory, Department of Medicine, Brigham & Women''s Hospital, Harvard Medical School, Boston, MA, USA;5. Exposure, Epidemiology and Risk Program, Department of Environmental Health, Harvard School of Public Health, Boston, MA, USA;6. Department of Epidemiology, Harvard School of Public Health, Boston, MA, USA |