title: Recognizing the Many Faces of Chronic Obstructive Pulmonary Disease.
authors.affiliation: 1 Channing Division of Network Medicine.|2 Division of General Internal Medicine and Primary Care Brigham and Women's Hospital Boston, Massachusetts.
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Castaldi
authors.affiliation: 3 Department of Medicine Perelman School of Medicine Philadelphia, Pennsylvania and.|4 Corporal Michael J. Crescenz Veterans Administration Medical Center Philadelphia, Pennsylvania.
authors.forename: Anil
authors.initials: A
authors.lastname: Vachani
mesh_terms: D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive