title: Letter: PGA: fact, not artifact.
mesh_terms: D000577:Amides / Q000494:pharmacology; D000818:Animals; D001095:Arachidonic Acids / Q000378:metabolism; D002845:Chromatography; D003300:Copper / Q000494:pharmacology; D003864:Depression, Chemical; D005260:Female; D005978:Glutathione / Q000494:pharmacology; D006801:Humans; D066298:In Vitro Techniques; D007668:Kidney / Q000378:metabolism; D008297:Male; D013058:Mass Spectrometry; D010920:Placenta / Q000378:metabolism; D011247:Pregnancy; D011453:Prostaglandins / Q000096:biosynthesis* / Q000097:blood / Q000378:metabolism; D011817:Rabbits; D011863:Radioimmunoassay; D051381:Rats; D012661:Semen / Q000378:metabolism; D012669:Seminal Vesicles / Q000378:metabolism; D012756:Sheep; D013053:Spectrophotometry; D013268:Stimulation, Chemical; D014316:Tritium
chemical_list: D000577:Amides; D001095:Arachidonic Acids; D011453:Prostaglandins; D014316:Tritium; D003300:Copper; D005978:Glutathione