title: Letter: Intrauterine device, prostaglandins and copper.
mesh_terms: D000818:Animals; D003300:Copper / Q000494:pharmacology*; D004717:Endometrium / Q000187:drug effects / Q000201:enzymology; D005260:Female; D006801:Humans; D007434:Intrauterine Devices; D006899:Mixed Function Oxygenases / Q000032:analysis; D011453:Prostaglandins / Q000096:biosynthesis / Q000378:metabolism / Q000502:physiology*
chemical_list: D011453:Prostaglandins; D003300:Copper; D006899:Mixed Function Oxygenases