1. Functional Heart Murmurs;Rudolf;Internat. Clin.,1905
2. Reflections on the Interpretation of Systolic Cardiac Murmurs;Thayer;Am. J. M. Sc.,1925
3. Cardiac Status of Adolescents;Schwartzmann;Arch. Pediat.,1941
4. The Heart in Normal Infants and Children;Epstein;J. Pediat.,1948
5. Occurrence of Innocent Adventitious Cardiac Sounds in Childhood;Friedman;Pediatrics,1949