Toth, T E Nonspecific cellular defense of the avian respiratory system: a review. [electronic resource] - Developmental and comparative immunology - 121-39 p. digital Publication Type: Journal Article; Review ISSN: 0145-305X Standard No.: 10.1016/s0145-305x(99)00068-3 doi Subjects--Topical Terms: AnimalsBird Diseases--immunologyPhagocytes--immunologyRespiratory Tract Diseases--immunology