Cotter , Paul F., and E.D. Heller. “Complex Hemograms of Isolator Raised Specific Pathogen Free (SPF) Chicks”. International Journal of Poultry Science 15, no. 6 (May 15, 2016): 211–217. Accessed September 22, 2025. https://ijpsjournal.org/index.php/ijps/article/view/2261.