The influence of nonspecific immunotherapy on the course of Murine Melanoma

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Abstract
BCG, Corynebacterium parvum, vitamin A, and levamisole were continuously administered to C57 BL/6 mice bearing B16 melanoma prior to, with, and following tumor implantation as well as before and coincident with surgical excision of the implanted tumor. Only the group given levamisole prophylactically for 8 weeks before tumor inplantation showed a significant difference from control mice but a tenfold increase in dosage in this drug did not exert a comparable effect.