[Lung, heart or psyche. What is the cause of dyspnea?].
D000465:Algorithms; D003937:Diagnosis, Differential; D004417:Dyspnea / Q000209:etiology*; D006331:Heart Diseases / Q000175:diagnosis*; D006801:Humans; D008171:Lung Diseases / Q000175:diagnosis*; D013001:Somatoform Disorders / Q000175:diagnosis*