Erbel, R Improved diagnostic value of echocardiography in patients with infective endocarditis by transoesophageal approach. A prospective study. [electronic resource] - European heart journal Jan 1988 - 43-53 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0195-668X Subjects--Topical Terms: Echocardiography--methodsEndocarditis, Bacterial--pathologyEsophagusHeart Valves--pathologyHumansImage Enhancement--methodsPrognosisProspective Studies