Okamoto, M Induction of ocular tumor by nickel subsulfide in the Japanese common newt, Cynops pyrrhogaster. [electronic resource] - Cancer research Oct 1987 - 5213-7 p. digital Publication Type: Journal Article ISSN: 0008-5472 Subjects--Topical Terms: AnimalsChromosome AberrationsEye--pathologyEye Neoplasms--chemically inducedMethylnitronitrosoguanidineNickel--toxicityRegenerationSalamandridae