title: Endogenous prostaglandin as (PGAs): fact or artifact in biological systems.
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D006801:Humans; D011454:Prostaglandins A / Q000032:analysis* / Q000097:blood / Q000378:metabolism; D011458:Prostaglandins E / Q000378:metabolism; D011460:Prostaglandins F / Q000378:metabolism; D011863:Radioimmunoassay / Q000379:methods
chemical_list: D011454:Prostaglandins A; D011458:Prostaglandins E; D011460:Prostaglandins F