Bennett, 1970, Current national patterns—United States, 42
Center for Disease Control, 1980, Trends in surgical wound infection rates—United States, Morbid Mortal Weekly Rep, 29, 27
Brachman, 1980, Nosocomial surgical infections: incidence and cost, Surg Clin North Am, 60, 15, 10.1016/S0039-6109(16)42030-X