Epidemiology of respiratory syncytial virus infection in Washington, D.C. II. Infection and disease with respect to age, immunologic status, race and sex. - Parrott,RH.; Kim,WH.; Arrobio,JO.; Hodes,DS.; Murphy,BR.; Brandt,CD.; Camargo,E.; Chanock,RM. (Am J Epidemiol, 1973)