References
- U.S. Department of Health Education and Welfare. Public Health Services: Vital Statistics of the United States, 1969. Volume I, Natality. U.S. Government Printing Office, Washington, D.C. 1974; 1–31, Section I, Na tality-Rates & Characteristics, tables 1–30
- Hellman Louis, Pritchard Jack. Williams Obstetrics. Appleton-Century-Crofts, New York 1971; 765
- Battaglia Frederick, Fra-Zier Todd, Hellegers Andre. Obstetric and Pediatric Complications of Juvenile Pregnancy. Pediatrics Nov., 1963; 907
- Speroff Leon. Toxemia of Pregnancy-Mechanism and Therapeutic Management. American Journal of Cardiology Sept. 20, 1973; 589
- Battaglia. 909, op. cit.
- Battaglia. 908, op. cit.
- Kennedy Janet. The High Risk Maternal-Infant Acquaintance Process. Nursing Clinics of North America Sept., 1973; 550
- Klein Luella. Early Teenage Pregnancy, Contraception, and Repeat Pregnancy. American Journal of Obstetrics Gynecology Sept. 15, 1974; 249
- Kennedy. 555, op. cit.
- Frye Barbara, Barham Barbara. Reaching Out to Pregnant Adolescents. American Journal of Nursing Sept., 1975; 1502–1504