Potentiationof Immunityto MurineLeukemia ( LSTRA ) byBacillus


(7), had systemic effects (even against i.v. challenge) (5, 29), and was effective even if given several days after the challenge injection (29).There are severaldisadvantagesto that model, the most serious of which is the expense and limited availability of strain 2 guinea pigs. In addition, the tumor's natural course of spread after i.d.4 or s.c… (More)


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