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A prospective study on the effects on hemostasis of two oral contraceptives containing drospirenone in combination with either 30 or 20 microg ethinyl estradiol and a reference containing desogestrel and 30 microg ethinyl estradiol.
Kluft C, Endrikat J, Mulder SM, Gerlinger C, Heithecker R. Kluft C, et al. Among authors: mulder sm. Contraception. 2006 Apr;73(4):336-43. doi: 10.1016/j.contraception.2005.09.015. Contraception. 2006. PMID: 16531162 Clinical Trial.
The effect of epidural administration of alfentanil on intra-operative intravenous alfentanil requirements during nitrous oxide-oxygen-alfentanil anaesthesia for lower abdominal surgery.
Haak van der Lely F, Burm AG, van Kleef JW, van den Nieuwenhuyzen MC, Siemens TJ, Mulder SM, Bovill JG, Vletter AA. Haak van der Lely F, et al. Among authors: mulder sm. Anaesthesia. 1994 Dec;49(12):1034-8. doi: 10.1111/j.1365-2044.1994.tb04350.x. Anaesthesia. 1994. PMID: 7864315 Free article. Clinical Trial.