Cyst induction in adult rats by means of sodium nitrite after infection with avian sarcoma virus

agentes nocivos agua agua dulce animal animal de laboratoire animales animales de laboratorio animals avian oncovirus carcinogens diseases eau eau douce enfermedades respiratorias facteur nuisible freshwater injurious factors inorganic compounds laboratory animals maladie organique maladie respiratoire mammals nitrite nitrites nitritos oncovirus aviaire oncovirus aviar organic diseases rat rata rats respiratory diseases retroviridae rodents roedores rongeur rous sarcoma virus sales salts sel substance toxique toxic substances vertebrados vertebrates vertebre virus virus del sarcoma de rous virus sarcome de rous viruses water