the effect of theobromine ( tb ) and diphylline ( dp ) or ( 1,2-dihydroxy-3-propyl ) theophylline on sce rates induced in vitro by mitomycin c ( mmc ) , and the effect of caffeine on sce rates induced in vitro by cytosine arabinoside ( ara-c ) was studied .
C0013360
diphylline
C0039771
theophylline