[UTERINE PESSARIES FOR THE PREVENTION OF PREGNANCY].
D035843:Biomedical Research; D003273:Contraceptive Devices; D005260:Female; D006801:Humans; D010570:Pessaries; D011247:Pregnancy; D014599:Uterus
CONTRACEPTIVE DEVICES; PESSARIES
INTRAUTERINE PESSARE ZUR VERHINDERUNG DER SCHWANGERSCHAFT.