1. VA Bedford Healthcare System Center for Healthcare Organization and Implementation Research, 581275, Bedford, Massachusetts, United States
2. Boston University School of Medicine, 12259, General Internal Medicine, Boston, Massachusetts, United States
3. University of Massachusetts Lowell, 14710, Department of Public Health, Zuckerberg School of Health Sciences, Lowell, Massachusetts, United States
4. Bentley University, 8243, Department of Mathematical Sciences, Waltham, Massachusetts, United States
5. Edith Nourse Rogers Memorial Veterans Hospital, 20024, Center for Healthcare Organization and Implementation Research, Bedford, Massachusetts, United States
6. Boston University School of Medicine, 12259, The Pulmonary Center, Boston, Massachusetts, United States;