title: Problems of assessment of prostacyclin formation in vivo.
mesh_terms: D015121:6-Ketoprostaglandin F1 alpha / Q000097:blood; D002851:Chromatography, High Pressure Liquid; D011464:Epoprostenol / Q000096:biosynthesis*; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D011863:Radioimmunoassay
chemical_list: D015121:6-Ketoprostaglandin F1 alpha; D011464:Epoprostenol