1. Fred HL. Hyposkillia: deficiency of clinical skills. Tex Heart Inst J. 2005;32:255–257
2. Barrett MJ, Lacey CS, Sekara AE, Linden EA, Cracely EJ. Mastering cardiac murmurs: the power of repetition. Chest. 2004;126:470–475
3. Biancaniello T. Innocent murmurs: a parent's guide. Circulation. 2004;109:e162–e163
4. McNamara DG. Value and limitations of auscultation in the management of congenital heart disease. Pediatr Clin North Am. 1990;37:93–113
5. Rosenthal A. How to distinguish between innocent and pathologic murmur in childhood. Pediatr Clin North Am. 1984;31:1229–1240