2'-deoxyadenosine , inosine , guanine , 2'-deoxyguanosine and the pyrimidines cytosine , cytidine , 2'-deoxycytidine , 2'-deoxythymidine and uridine all given at 100 mumoles/mouse and orotic acid given at 25 mumoles/mouse had no significant effects on the plaque response ;
C0034289
pyrimidines
C0041984
uridine