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Experimental design of the present study. Alz, alizarin; BBN, N‐butyl‐N‐(4‐hydroxybutyl)nitrosamine; DEN, N‐diethylnitrosamine; DHPN, 2,2′‐dihydroxy‐di‐n‐propylnitrosamine; DMH, 1,2‐dimethylhydrazine; MNU, N‐methyl‐N‐nitrosourea; Rub, rubiadin.
