1. Division of General Internal Medicine, Boston University Chobanian & Avedisian School of Medicine , Boston, MA , USA
2. Center for Healthcare Organization & Implementation Research, VA Boston Healthcare System , Boston, MA , USA
3. Pulmonary Center, Boston University Chobanian & Avedisian School of Medicine , Boston, MA , USA
4. Division of Pulmonary, Critical Care, and Sleep Medicine, Tufts University School of Medicine , Boston, MA , USA
5. Research Computing Services (RCS) Group, Information Services & Technology, Boston University , Boston, MA , USA
6. Clinical Data Warehouse, Boston Medical Center , Boston, MA , USA