novikoff rat hepatoma cells were propagated in suspension culture in the presence of 1 micron methotrexate and various concentrations of hypoxanthine ( or adenosine plus guanosine ) and thymidine and with or without the inhibitor of nucleoside and purine transport , persantin ( dipyridamole ) .
C0700020
persantin
C0012582
dipyridamole