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

Bleeding profile of a flexible extended regimen of ethinylestradiol/ drospirenone in US women: an open-label, three-arm, active-controlled, multicenter studyJENSEN, Jeffrey T; GARIE, Sona Grossova; TRUMMER, Dietmar et al.Contraception (Stoneham). 2012, Vol 86, Num 2, pp 110-118, issn 0010-7824, 9 p.Article

Efficacy and safety of a low-dose combined oral contraceptive containing drospirenone 3 mg and ethinylestradiol 20 mcg in a 24/4-day regimenHEMADI, Laszló; MARR, Joachim; TRUMMER, Dietmar et al.Contraception (Stoneham). 2009, Vol 80, Num 1, pp 18-24, issn 0010-7824, 7 p.Article

Folate status and homocysteine levels during a 24-week oral administration of a folate-containing oral contraceptive: a randomized, double-blind, active-controlled, parallel-group, US-based multicenter studyBART SR, Stephan; MARR, Joachim; DIEFENBACH, Konstanze et al.Contraception (Stoneham). 2012, Vol 85, Num 1, pp 42-50, issn 0010-7824, 9 p.Article

Bioequivalence study of an oral contraceptive containing ethinylestradiol/ drospirenone/levomefolate calcium relative to ethinylestradiol/ drospirenone and to levomefolate calcium aloneBLODE, Hartmut; KLIPPING, Christine; RICHARD, Frank et al.Contraception (Stoneham). 2012, Vol 85, Num 2, pp 177-184, issn 0010-7824, 8 p.Article

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

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