Severe hypoxemia and stroke caused by a patent foramen ovale with right-to-left interatrial shunt despite normal right atrial pressures. (June 2021) - Marquetand, C.; Stierle, U.; Buchmann, I.; John, M.; Busch-Tilge, C.; Fuernau, G.; Graf, T.; Kurz, T.; Eitel, I.; Reil, J.C.