Value of Contrast Transesophageal Echocardiography in the Detection of Intrapulmonary Vascular Dilatations in Hepatosplenic Schistosomiasis oleh Aparecida de Gouvea, Claudio Henrique Fischer, Jaquelina Sonoe Ota Arakaki, Frederico José Mancuso, Paulo Brant, Valdir Ambrósio Moisés, Orlando Campos Filho