1. Premature Infants, Federal Security Agency;Dunham;Children's Bureau Publication,1948
2. Causes of Prematurity: IV. Influence of Maternal Illness on the Incidence of Prematurity, Employment of a New Criterion of Prematurity for the Negro Race;Brown;Am. J. Dis. Child.,1945
3. Effect of Obstetric Difficulties and Maternal Diseases on the Premature Infant Mortality;Tayler;J. A. M. A.,1949
4. Hospital Fatality Rates for Premature Infants;Bain;Pediatrics,1949
5. A Study of Premature Mortality;Flax;J. Pediat.,1942