PT - JOURNAL ARTICLE AU - Effler, Donald B. AU - Groves, Laurence K. TI - Pitfalls in the Surgical Closure of Atrial Septal Defect DP - 1961 Jul 01 TA - Cleveland Clinic Journal of Medicine PG - 166--175 VI - 28 IP - 3 4099 - http://www.ccjm.org/content/28/3/166.short 4100 - http://www.ccjm.org/content/28/3/166.full SO - Cleve Clin J Med1961 Jul 01; 28