1. Trends in length of stay for hospital deliveries—United States 1970–1992. MMWR 1995;44:335–7.
2. Young K, Davis K, Schoen C. The Commonwealth Fund survey of parents with young children. New York: The Commonwealth Fund, 1996.
3. Curtin SC, Kozak LJ. Decline in U.S. Cesarean delivery rate appears to stall. Birth 1998;25:259–62.
4. Marbella AM, Chetty VK, Layde PM. Neonatal hospital lengths of stay, readmissions, and charges. Pediatrics 1998;101:32–6.
5. American Academy of Pediatrics and American College of Obstetricians and Gynecologists. Guidelines for perinatal care. 3rd ed. Elk Grove Village, IL: American Academy of Pediatrics and American College of Obstetricians and Gynecologists, 1992.