TY - RPRT TI - M mode echocardiogram and abnormal structures behind the left atrium. AU - T H Goh AU - A W Venables PY - 1979 DO - 10.1016/0002-9149(79)90415-6 UR - https://pubmed.ncbi.nlm.nih.gov/474436/ ID - 474436 ER -