1. 1. “Services for Children with Heart Disease and Rheumatic Fever”. American Public Health Association, Inc., N.Y.C., 1960, p. 11. An invaluable guide for personnel dealing with children, prepared jointly with the American Heart Association.
2. 2. Quoted in unpublished analysis of these early studies by Philip Enterline, Chief Statistician, Heart Disease Control Program, Division of Special Health Services, in a memorandum addressed to the Regional Medical Director, P.H.S., Chicago District, Dr. Arthur Rickli dated 10/10/ 1955.
3. 3. “Report of the working committee to the Inter-Agency Advisory Committee-Children's Heart Screening Program-June 6, 1961”-files of the Chicago Heart Association.