[New contraceptive agent: various questions on p-sponges].
D003274:Contraceptive Devices, Female; D005260:Female; D006801:Humans; D017137:Nonoxynol; D011092:Polyethylene Glycols; D013089:Spermatocidal Agents
D013089:Spermatocidal Agents; D017137:Nonoxynol; D011092:Polyethylene Glycols
Nytt preventivmedel: några frågor runt p-kudden.