14c-prostaglandins detected by high-performance liquid chromatography and argentation thin-layer chromatography were : pgf1 alpha and pge1 ( derived from 20:3n-6 ) and pgf2 alpha and pge 2 ( derived from 20:4n-6 ) from line 4526 ;
C0033554
prostaglandins
C0002335
pge1