title: [Clinical and hematologic study of leukemia prior to its onset].
mesh_terms: D000818:Animals; D004906:Erythrocyte Count; D006412:Hematopoietic Stem Cells; D006801:Humans; D007938:Leukemia / Q000097:blood / Q000175:diagnosis*; D007942:Leukemia, Experimental / Q000097:blood; D007958:Leukocyte Count; D009607:Nitrosourea Compounds; D051381:Rats
chemical_list: D009607:Nitrosourea Compounds