in addition , the ovulatory and proteolytic effects of the phorbol ester , phorbol-12-myristate-13-acetate ( pma ) , and the calcium ionophore a23187 on 17,20b-p-stimulated follicles were also studied in the presence/absence of indomethacin ( im ) and nordihydroguaiaretic acid ( ndga ) .
C0031586
phorbol ester
C0039654
pma