1. Department of Medicine; Montefiore Medical Center; Albert Einstein College of Medicine; Bronx New York
2. Bureau of Health Services; Fire Department of the City of New York; Brooklyn New York
3. Department of Epidemiology and Population Health; Albert Einstein College of Medicine; Bronx New York
4. Department of Pulmonary Medicine; Montefiore Medical Center and Albert Einstein College of Medicine; Bronx New York