[Prevention of pregnancy with small doses of progestagen. Clinical study].
D002715:Chlormadinone Acetate / Q000494:pharmacology*; D003276:Contraceptives, Oral / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D011247:Pregnancy
D003276:Contraceptives, Oral; D002715:Chlormadinone Acetate
Schwangerschaftsverhütung durch kleine Progestagen-Gaben. Klinische Studie.