gtr? REG Hn | aE eT re ae Te ERT aN as ee es TEE Te Stoel, IARC MONOGRAPHS VOLUME 24 - Wogan, G.N., Paglialunga, S:, Archer, M.C. & Tannenbaum, S.R. (1975) Carcinogenicity of nitrosation progucis of ephedrine, sarcosine, folic acid, and creatinine. Cancer : Res., 35, 1981-1984 ’ Zabezhinsky, M.A, (1968) On carcinogente effect of N,N‘dinitrosopiperazine on mice ‘(Russ.). Vopr, Onkol, 15, 104-106 : ' ; nitrosopiperazines fair ea" aay. “Cancer Hés., 32,. 1608-1500 VE spies