Suppression of ovarian activity with a drospirenone-containing oral contraceptive in a 24/4 regimenKLIPPING, Christine; DUIJKERS, Ingrid; TRUMMER, Dietmar et al.Contraception (Stoneham). 2008, Vol 78, Num 1, pp 16-25, issn 0010-7824, 10 p.Article

Ultrasonographic assessment of endocervix and cervical mucus in ovulatory menstrual cyclesDUIJKERS, Ingrid J. M; KLIPPING, Christine.European journal of obstetrics, gynecology, and reproductive biology. 2000, Vol 93, Num 1, pp 13-17, issn 0301-2115Article

Ovarian function with the contraceptive vaginal ring or an oral contraceptive:a randomized studyDUIJKERS, Ingrid J. M; KLIPPING, Christine; VERHOEVEN, Carole H. J et al.Human reproduction (Oxford. Print). 2004, Vol 19, Num 11, pp 2668-2673, issn 0268-1161, 6 p.Article

One, two or three: how many directions are useful in transvaginal ultrasound measurement of ovarian follicles?DUIJKERS, Ingrid J. M; LOUWE, Leoni A; BRAAT, Didi D. M et al.European journal of obstetrics, gynecology, and reproductive biology. 2004, Vol 117, Num 1, pp 60-63, issn 0301-2115, 4 p.Article

Maintenance of ovulation inhibition with the 75-μg desogestrel-only contraceptive pill (cerazette®) after scheduled 12-h delays in tablet intakeKORVER, Tjeerd; KLIPPING, Christine; HEGER-MAHN, Doris et al.Contraception (Stoneham). 2005, Vol 71, Num 1, pp 8-13, issn 0010-7824, 6 p.Article

Pharmacodynamic effects and plasma pharmacokinetics of single doses of cetrorelix acetate in healthy premenopausal womenERB, Katharina; KLIPPING, Christine; DUIJKERS, Ingrid et al.Fertility and sterility. 2001, Vol 75, Num 2, pp 316-323, issn 0015-0282Article

Pituitary, ovarian and additional contraceptive effects of an estradiol-based combined oral contraceptive: results of a randomized, open-label studyENDRIKAT, Jan; PARKE, Susanne; TRUMMER, Dietmar et al.Contraception (Stoneham). 2013, Vol 87, Num 2, pp 227-234, issn 0010-7824, 8 p.Article

Follicular growth during contraceptive pill or vaginal ring treatment depends on the day of ovulation in the pretreatment cycleDUIJKERS, Ingrid J. M; VERHOEVEN, Carole H. J; DIEBEN, Thorn O. M et al.Human reproduction (Oxford. Print). 2004, Vol 19, Num 11, pp 2674-2679, issn 0268-1161, 6 p.Article

Ovulation inhibition with four variations of a four-phasic estradiol valerate/dienogest combined oral contraceptive : results of two prospective, randomized, open-label studiesENDRIKAT, Jan; PARKE, Susanne; TRUMMER, Dietmar et al.Contraception (Stoneham). 2008, Vol 78, Num 3, pp 218-225, issn 0010-7824, 8 p.Article

Single dose pharmacokinetics and effects on follicular growth and serum hormones of a long-acting recombinant FSH preparation (FSH-CTP) in healthy pituitary-suppressed femalesDUIJKERS, Ingrid J. M; KLIPPING, Christine; BOERRIGTER, Peter J et al.Human reproduction (Oxford. Print). 2002, Vol 17, Num 8, pp 1987-1993, issn 0268-1161Article