Divisions of Geriatric;
Hospital;
Palliative and General Internal Medicine;
University of Southern California;
Los Angeles;
California;
USA;
Department of Biostatistics;
School of Preventive Medicine;
University of Southern California;
Los Angeles;
California;
USA;
Pulmonary;
Critical Care and Sleep Medicine;
Keck School of Medicine;
University of Southern California;
Los Angeles;
California;
USA;
Chronic; Obstructive; Pulmonary; Disease; Dyspnea; Expiratory; Flow; Limitation; Hyperinflation; Inspiratory; Capacity;