1. National and state patterns of teen births in the United States, 1940–2013;Ventura;Natil. Vital Stat. Rep.: Cent. Disease Control Prev. Natl. Cent. Health Stat. Natl. Vital Stat. Syst.,2014
2. Adolescent Pregnancy, Birth, and Abortion Rates Across Countries: Levels and Recent Trends
3. Births: Final data for 2013;Martin;Natl. Vital Stat. Rep.: Cent. Disease Control Prev. Natl. Cent. Health Stat. Natl. Vital Stat. Syst.,2015
4. What is behind the declines in teen pregnancy rates?;Boonstra;Guttmacher Policy Rev.,2014
5. Teen Fertility in Transition: Recent and Historic Trends in the United States