title: Shortness of breath induced by standing.
authors.affiliation: Vanderbilt University Hospital, Nashville.
authors.forename: R
authors.initials: R
authors.lastname: Davis
authors.forename: N J
authors.initials: NJ
authors.lastname: Brown
mesh_terms: D000368:Aged; D004417:Dyspnea / Q000209:etiology* / Q000503:physiopathology; D015444:Exercise / Q000502:physiology*; D005260:Female; D006344:Heart Septal Defects, Atrial / Q000150:complications* / Q000503:physiopathology; D006801:Humans; D008176:Lung Volume Measurements; D011187:Posture / Q000502:physiology*; D001261:Pulmonary Atelectasis / Q000150:complications* / Q000503:physiopathology; D014692:Ventilation-Perfusion Ratio / Q000502:physiology