Pregnancy at forty and over: a case-control study

Delayed Childbearing and the Outcome of Pregnancy

Gertrud S. Berkowitz, Mary Louise Skovron, Robert H. Lapinski et al. · New England Journal of Medicine · 1990 · 429 citations

Fertility, Reproductive Health, Gynecology +18

Maternal age, obstetric complications, and the outcome of pregnancy.

Naeye Rl · PubMed · 1983 · 253 citations

Fertility, Pregnancy Disorders, Gynecology +19

Advanced maternal age: The mature gravida

Donna S. Kirz, Wendy Dorchester, Roger K. Freeman · American Journal of Obstetrics and Gynecology · 1985 · 202 citations

Parental Care, Fertility, Longevity +9

Pregnancy after 40 years of age.

Spellacy Wn, Miller Sj, Ann Winegar · PubMed · 1986 · 93 citations

Fertility, Reproductive Health, Gynecology +20

Pregnancy outcome in elderly primigravidae with and without a history of infertility

Susan Tuck, P Yudkin, A. C. Turnbull · BJOG An International Journal of Obstetrics & Gynaecology · 1988 · 88 citations