TY - BOOK ED - National Cancer Institute (U.S.) TI - Carcinogenic effects of N-nitrosomorphine and N-nitrisopiperinddine [sic] on European hamster (cricetus cricetur) PY - 1970///?] CY - [Washington, D.C. KW - Cancer KW - Research N1 - CRDP Program Historic Shelflist record ER -