Iowa State University Veterinarian Records, RS 22/6/0/9, University Archives, Special Collections Department, Iowa State University, http://www.add.lib.iastate.edu/spcl/arch/rgrp/22-6-0-9.html
The classification of lung lesions according to location is a system that enables one to diagnose lung diseases on gross examination. In most instances it also indicates the probable etiology. The schematic sketches included in this paper show the basic alterations that occur in the lung.
Monlux, William S.
"Classification of Lung Lesions,"
Iowa State University Veterinarian: Vol. 21
, Article 1.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol21/iss3/1