1. Sex and America’s Teenagers,1994
2. National Center for Health Statistics. Monthly Vital Statistics Report: Advanced report of final natality statistics, 1991. US Dept of Health and Human Services publication (PHS) 42:26. Hyattsville, MD: Public Health Service, 1995.
3. National Center for Health Statistics. Monthly Vital Statistics Report: Advanced report of final natality statistics, 1981. US Dept of Health and Human Services publication (PHS) 32:9. Hyattsville, MD: Public Health Service, 1983.
4. Teenage abortion and pregnancy statistics by State, 1992;Henshaw;Fam Plann Perspect,1997
5. Births to teenagers;Amini;Obstet Gynecol,1996