Huber, A [Standard and mini-gravigard in nulliparae. Comparison of 2 multicentric studies]. [electronic resource] - Gynakologische Rundschau Jun 1980 - 288-93 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0017-6001 Subjects--Topical Terms: AdultAustriaFemaleHumansIntrauterine Device ExpulsionIntrauterine DevicesParityPelvic Inflammatory Disease--epidemiologySwitzerland