Sassé, L Pericardial echocardiography. [electronic resource] - Annals of internal medicine Nov 1977 - 635 p. digital Publication Type: Letter ISSN: 0003-4819 Standard No.: 10.7326/0003-4819-87-5-635_1 doi Subjects--Topical Terms: EchocardiographyHumansPericardial Effusion--diagnosis