1. Abma JC, Chandra A, Mosher WD, Peterson LS, Piccinino LJ. Fertility, family planning, and women’s health: new data from the 1995 National Survey of Family Growth. Vital Health Stat 1997, 19: 1–114.
2. Ventura SJ, Mosher WD, Curtin SC, Abma JC, Henshaw S. Trends in pregnancy rates for the United States, 1976–97: an update. Natl Vital Stat Rep 2001, 49: 1–9.
3. Auger J, Kunstmann JM, Czyglik F, Jouannet P. Decline in semen quality among fertile men in Paris during the past 20 years. N Engl J Med 1995, 332: 281–5.
4. Mieusset R, Bujan L. Testicular heating and its possible contributions to male infertility: a review. Int J Androl 1995, 18: 169–84.
5. Ventura SJ, Mosher WD, Curtin SC, Abma JC, Henshaw S. Highlights of trends in pregnancies and pregnancy rates by outcome: estimates for the United States, 1976–96. Natl Vital Stat Rep 1999, 47: 1–9.