title: Clinical experience with LEM, an intrauterine contraceptive device.
mesh_terms: D000293:Adolescent; D000328:Adult; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects; D008722:Methods; D009119:Muscle Contraction; D010146:Pain; D011095:Polyethylenes; D011247:Pregnancy; D011275:Pregnancy, Unwanted; D014592:Uterine Hemorrhage / Q000209:etiology; D014599:Uterus / Q000294:innervation
chemical_list: D011095:Polyethylenes