The Menstrual Cycle in Women Using an Intrauterine Device

A radioimmunoassay which specifically measures human chorionic gonadotropin in the presence of human luteinizing hormone

Judith L. Vaitukaitis, Glenn D. Braunstein, Griff T. Ross · American Journal of Obstetrics and Gynecology · 1972 · 891 citations

Medicine, Endocrinology, Reproductive Endocrinology +10

Radioimmunoassay of serum progesterone in women receiving oral contraceptive steroids

Ian H. Thorneycroft, Sergio C. Stone · Contraception · 1972 · 311 citations

Medicine, Endocrinology, Gynecology +14

Premature onset of menstrual bleeding during ovulatory cycles in women with an intrauterine contraceptive device

Karl‐Gösta Nygren, Elof D.B. Johansson · American Journal of Obstetrics and Gynecology · 1973 · 48 citations

Medicine, Gynecology, Obstetrics +17

Increased fibrinolytic activity in the endometrium of patients using copper-IUD

Bertil Larsson, Percy Liedholm, Nils‐Otto Sjöberg et al. · Contraception · 1974 · 32 citations

Medicine, Gynecology, Obstetrics +10

Progesterone and estradiol patterns in women using an intrauterine contraceptive device.

Brenner Pf, Mishell Dr · PubMed · 1975 · 21 citations

Medicine, Endocrinology, Gynecology +17