authors Genao, Liza Durheim, Michael T Mi, Xiaojuan Todd, Jamie L Heather Whitson, MD Curtis, Lesley H
has subject area Aged Aged, 80 and over Cause of Death Emergency Service, Hospital Female Follow-Up Studies Hospitalization Humans Male Medicare Oxygen Inhalation Therapy Prognosis Pulmonary Disease, Chronic Obstructive Retrospective Studies Survival Rate Time Factors United States