RT Journal Article SR Electronic T1 Spectrum of M-mode echocardiographic findings in total anomalous pulmonary venous return JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 315 OP 324 VO 48 IS 3 A1 Moodie, Douglas S. YR 1981 UL http://www.ccjm.org/content/48/3/315.abstract AB