Comparison of Inhaled Nitric Oxide Versus Oxygen on Hemodynamics in Patients With Mitral Stenosis and Severe Pulmonary Hypertension After Mitral Valve Surgery - Fernandes, Juliano L.; Sampaio, Roney O.; Brandão, Carlos M.; Accorsi, Tarso Augusto Duenhas; Cardoso, Luiz F.; Spina, Guilherme Sobreira; Tarasoutchi, Flavio; Pomerantzeff, Pablo; Auler Júnior, José Otávio Costa; Grinberg, Max (American Journal of Cardiology, 2011)