Röggla, Georg A case of an Alpinist with a patent foramen ovale and high-altitude pulmonary edema at moderate altitude. [electronic resource] - Wilderness & environmental medicine 2007 - 321 p. digital Publication Type: Case Reports; Letter ISSN: 1080-6032 Standard No.: 10.1580/07-WEME-LE-115.1 doi Subjects--Topical Terms: AltitudeForamen Ovale, Patent--complicationsHumansMaleMiddle AgedPulmonary Edema--etiologyRisk Factors