title: Experience with a wing pessary as an intrauterine contraceptive device.
mesh_terms: D002986:Clinical Trials as Topic; D004950:Esterases / Q000378:metabolism*; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects; D007730:Kuwait; D008595:Menorrhagia / Q000209:etiology; D010261:Paraoxon / Q000494:pharmacology
chemical_list: D004950:Esterases; D010261:Paraoxon