[The postcoital pill--time to switch to gestagen only?].
Sørensen
M B
MB
Riverside Community Health Care, London, England.
Pedersen
B L
BL
D003282:Contraceptives, Postcoital, Hormonal / Q000008:administration & dosage / Q000009:adverse effects; D005260:Female; D006801:Humans; D016912:Levonorgestrel / Q000008:administration & dosage / Q000009:adverse effects; D011372:Progestins / Q000008:administration & dosage / Q000009:adverse effects
D003282:Contraceptives, Postcoital, Hormonal; D011372:Progestins; D016912:Levonorgestrel