title: Letter to the Editor: K. Gemzell-Danielsson et al. Emergency contraception - mechanisms of action. Contraception 87 (2013) 300-308.
authors.affiliation: Department of Obstetrics, Gynecology and Reproductive Medicine, Hannover Medical School, Carl-Neubergstr. 1, D-30625 Hannover, Germany. Electronic address: hillemanns.peter@mh-hannover.de.
authors.forename: Peter
authors.initials: P
authors.lastname: Hillemanns
authors.forename: Hermann
authors.initials: H
authors.lastname: Hepp
mesh_terms: D044363:Contraception, Postcoital / Q000379:methods*; D003271:Contraceptive Agents, Female / Q000494:pharmacology*; D005260:Female; D006801:Humans; D007435:Intrauterine Devices, Copper; D016912:Levonorgestrel / Q000494:pharmacology*; D008297:Male; D009649:Norpregnadienes / Q000494:pharmacology*; D011247:Pregnancy
chemical_list: D003271:Contraceptive Agents, Female; D009649:Norpregnadienes; D016912:Levonorgestrel