testosterone , 4-androstene-3,17-dione , 19-hydroxy-4-androstene-3,17-dione , 4alpha-5-oxido-5alpha-androstane-3,17-dione and 4beta-5-oxido-5beta-androstane-3,17-dione were compared as substrates for aromatization by the small particle fraction from sow ovaries .
C0039601
testosterone
C0002854
androstane