Case C L, Crawford F A, Gillette P C, Ross B A, Zeigler V L
South Carolina Children's Heart Center, Medical University of South Carolina, Dept. of Pediatric Cardiology, Charleston 29425.
Am Heart J. 1988 Jul;116(1 Pt 1):187-9. doi: 10.1016/0002-8703(88)90267-0.