Economic Status and the Incidence of Illness: Hagerstown Morbidity Studies No. X: Gross and Specific Illness Rates by Age and Cause among Persons Classified According to Family Economic Status

Edgar Sydenstricker, Economic Status and the Incidence of Illness: Hagerstown Morbidity Studies No. X: Gross and Specific Illness Rates by Age and Cause among Persons Classified According to Family Economic Status, Public Health Reports (1896-1970), Vol. 44, No. 30 (Jul. 26, 1929), pp. 1821-1833