The ovarian function of 20 healthy users of a levonorgestrel-releasing intrauterine device
was studied by measurements of plasma estradiol, progesterone, and levonorgestrel …

Patterns of bleeding and plasma concentrations of levonorgestrel, progesterone, estradiol,
LH and FSH were studied in ten volunteers who had a levonorgestrel-releasing IUD inserted …

Plasma concentrations of levonorgestrel, progesterone, estradiol, FSH and LH were
measured in seven volunteers who had a levonorgestrel-releasing IUD inserted …

Ovarian function was studied for two complete menstrual cycles in 9 regularly menstruating
women and for 8 weeks in three amenorrhoeic women who had used levonorgestrel …

PIP: 6 healthy women aged 25-38 years, attending a family planning clinic in the Dominican
Republic, participated in an experiment to determine blood levels of levonorgestrel (1Ng) …

In a pharmacokinetic study, levonorgestrel (L-NOG) 0.75 mg was administered orally to 10
Swedish women in the early follicular phase of the menstrual cycle. L-NOG levels were …

Fifteen women with regular menstrual periods and seven amenorrheic women who had
been using a levonorgestrel-releasing (LNg) IUD for more than seven years were studied …

An effort was made to achieve different levels of plasma levonorgestrel (13-ethyl-17α-
ethynyl-17-hydroxy-gon-4-en-3-one)(Ng) concentrations by the intra-uterine administration …

Intrauterine devices releasing 20 μg/day levonorgestrel were inserted in 10 women (ages 25–
34). Bleeding and spotting patterns were recorded on a menstrual card during one year of …

The conception rate and outcome of pregnancy of twenty-one women who had been using a
levonorgestrel-releasing intrauterine contraceptive device and who had had the device …