[One-year report of experience with the pregnancy-preventing agent "Ovosiston" in a rural district of Altmark].
D000328:Adult; D003276:Contraceptives, Oral / Q000009:adverse effects; D011307:Drug Prescriptions; D005260:Female; D005859:Germany, East; D006801:Humans; D012424:Rural Population
D003276:Contraceptives, Oral
Einjähriger Erfahrungsbericht über das Schwangerschaftsverhütungsmittel "Ovosston" in einem Landkreis der Altmark.