1. Centers for Disease Control and Prevention. Status report on the Childhood Immunization Initiative: National, state, and urban area vaccination coverage levels among children 19-35 months-United States, 1996. MMWR1997;46:657-671.
2.
2. Bates AS, Wolinsky FD. Personal, financial, and structural barriers to immunization in socioeconomically disadvantaged urban children. Pediatrics. 1998;101;591-596.
3.
3. Wood D, Donald-Sherbourne C, Halfon N, et al. Factors related to immunization status among inner-city Latino and African-American preschoolers. Pediatrics. 1995;96:295-301.
4.
4. Frankenburg WK. Preventing developmental delays: part II partners in health care. Pediatrics. 1994;93:589-593.
5.
5. Stevens-Simon C, Fullar SA, McAnarney ER. Teenage pregnancy: caring for adolescent mothers with their infants in pediatric settings. Clin Pediate1989;28:282-283.
6.
6. Stevens-Simon C, Wallis J, Allan-Davis J. Antecedents of preterm delivery among adolescents: relationship to type of prenatal care. J Maternal Fetal Med. 1995;4:186-193.
7.
7. US Department of Health and Human Services, Public Health Service. Standards for Pediatric Immunization Practices. Washington DC: US Department of Health and Human Services, 1992.
8.
8. Nie NH, Hull CH, Jenkins JG, et al. Statistical Package for the Social Sciences, 3rd ed.New York: McGraw-Hill, 1989.
9.
9. O'Sullivan A, Jacobsen BS. A randomized trial of a health care program for first-time adolescent mothers and their infants. Nurs Res. 1992;41:210-215.
