2 ﹒ Stehelin P,Var mus HE,BishopJ M,eta l ﹒ DNAr elated tot he transform ing genes of avian sarcoma viruses is presenti nn orm ala vianD NA ﹒ Nature,1976。3.Bishop JM ﹒ Enemiesw ithin:Theg enesiso f retroviruso ncogenes ﹒ Cell,1982。9.Quelle DE,ZindyF,Ashmu ......