K. Ratsula

发表

Clinical performance of a levonorgestrel-releasing intracervical contraceptive device during the first two years of use.

K. Ratsula, 1989, Contraception.

Clinical performance of a levonorgestrel-releasing intracervical contraceptive device during the first year of use.

K. Ratsula, 1987, Contraception.

Vaginal contraception with gossypol: a clinical study.

T. Luukkainen, M. Haukkamaa, K. Wichmann, 1983, Contraception.

Plasma levonorgestrel levels and ovarian function during the use of a levonorgestrel-releasing intracervical contraceptive device.

J. Toivonen, T. Luukkainen, P. Lähteenmäki, 1989, Contraception.

Acceptability of an experimental intracervical device: results of a study controlling for selection bias.

R. Shain, A. Holden, J. Toivonen, 1989, Contraception.

A 12-month comparative clinical investigation of a levonorgestrel-releasing intracervical device situated in the uterine cavity or cervical canal.

J. Tuominen, P. Lähteenmäki, K. Elomaa, 1996, Contraception.

Endocrinology: Subcutaneous goserelin versus intranasal buserelin for pituitary down-regulation in patients undergoing IVF: a randomized comparative study

J. Tapanainen, H. Martikainen, O. Hovatta, 1993 .

Measurements of salivary progesterone throughout the menstrual cycle in women suffering from unexplained infertility reveal high frequency of luteal phase defects

I. Huhtaniemi, O. Hovatta, H. Kurunmäki, 1990 .

Measurements of salivary progesterone throughout the menstrual cycle in women suffering from unexplained infertility remeal hig frequency of luteal phase defects

I. Huhtaniemi, O. Hovatta, H. Kurunmaki, 1991, Fertility and Sterility.