Induction of lung cancer in germfree, specific-pathogen-free, and infected rats by N-nitrosoheptamethyleneimine: enhancement by respiratory infection.

Administration, Oral Animals Azocines/administration & dosage Carcinogens/pharmacology Carcinoma, Squamous Cell/chemically induced,complications Female Germ-Free Life Lung Neoplasms/chemically induced,complications Male Mycoplasma Infections/complications Neoplasms, Experimental/chemically induced Nitrosamines/administration & dosage,pharmacology Pneumonia, Viral/complications Rats Respiratory Tract Infections/complications Sex Factors

Azocines Carcinogens Nitrosamines N-nitrosoheptamethyleneimine