title: Shortness of breath: COPD or CHF?
authors.forename: Tsung O
authors.initials: TO
authors.lastname: Cheng
mesh_terms: D003937:Diagnosis, Differential; D004417:Dyspnea / Q000209:etiology*; D006333:Heart Failure / Q000150:complications / Q000175:diagnosis*; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive / Q000150:complications / Q000175:diagnosis*