Molin, A Cervical dilatation before first trimester elective abortion: a comparison between laminaria and a newly developed hydrogel tent, the A rod. [electronic resource] - Gynecologic and obstetric investigation 1992 - 12-4 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0378-7346 Standard No.: 10.1159/000292716 doi Subjects--Topical Terms: Abortion, Induced--methodsDilatation and Curettage--instrumentationFemaleHumansHydrogel, Polyethylene Glycol DimethacrylateLaminariaPolyethylene Glycols--pharmacologyPregnancyPregnancy Trimester, First