Hefnawi, F Menstrual pattern and blood loss with U-coil inert progesterone-releasing IUDs. [electronic resource] - Contraceptive delivery systems Apr 1982 - 91-8 p. digital Publication Type: Journal Article ISSN: 0143-6112 Subjects--Topical Terms: ContraceptionDiagnosisDiseaseFamily Planning ServicesHemoglobinsHemorrhageIntrauterine DevicesIntrauterine Devices, CopperIntrauterine Devices, MedicatedMenstrual CycleMenstruationMetrorrhagiaPolyethyleneReproductionSigns and Symptoms