in the present study , for the purpose of evaluation of direct antitumor activity of ok-432 and psk , inhibitory effects of the drugs on cell growth of gch-1 and gch-2 ( in vitro cell lines of human choriocarcinoma ) were analyzed referring to those of mtx ( methotrexate ) and act-d ( actinomycin d ) .
C0008497
choriocarcinoma
C0025677
methotrexate