RT Journal Article SR Electronic T1 Transesophageal echocardiography: why and when to use it JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 211 OP 218 VO 61 IS 3 A2 Thomas, James A1 Demaria, Anthony A1 Klein, Allan A1 Belli, Guido A1 Annan, Kingsley YR 1994 UL http://www.ccjm.org/content/61/3/211.abstract AB