Sekiya, T Amplification of activated c-Ha-ras-1 in human melanoma. [electronic resource] - Japanese journal of cancer research : Gann Jul 1985 - 555-8 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0910-5050 Subjects--Topical Terms: Cloning, MolecularGene AmplificationHumansMelanoma--geneticsNucleic Acid HybridizationOncogenes