Group B streptococci in IUCD users.
D005260:Female; D006801:Humans; D007434:Intrauterine Devices; D012007:Rectum / Q000382:microbiology; D013292:Streptococcus agalactiae / Q000302:isolation & purification*; D014521:Urethra / Q000382:microbiology; D014621:Vagina / Q000382:microbiology