Parmar R C, Pillai S, Kulkarni S, Sivaraman A
Department of Pediatric Cardiology, Institute of Cardiovascular Diseases, Madras Medical Mission Hospital, Mogappair (east), Chennai, India.
Pediatr Cardiol. 2004 Jul-Aug;25(4):432-3. doi: 10.1007/s00246-003-9008-6.