title: Platypnea-orthodeoxia due to interatrial right-to-left shunting.
authors.forename: T O
authors.initials: TO
authors.lastname: Cheng
mesh_terms: D004417:Dyspnea / Q000209:etiology*; D006344:Heart Septal Defects, Atrial / Q000150:complications*; D006801:Humans; D011187:Posture