Smithburn, K.C. and L.G. Zerfas. "The neural symptoms and signs in pernicious anemia." Reprinted from The Archives of Neurology and Psychiatry, May 1931., Box: 4. Veterinary Reprint and Pamphlet Collection, 24-4-3369. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/263223 Accessed April 08, 2026.