1. Further observations on survival of the protozoon parasite Histomonas meleagridis and eggs of the poultry nematode in the feces of infected birds;Farr;Cornell Vet.,1957
2. Production of fatal blackhead in turkeys by feeding embryonated eggs of Heterakis papillosa;Graybill;J. Exptl. Med.,1920
3. The occurrence of Histomonas meleagridis in Heterakis gallinae;Kendall;Parasitology,1958
4. An infectious disease among turkeys caused by protozoa (infectious entero-hepatitis);Smith;U. S. Dept. of Agri. Bull.,1895
5. Enterohepatitis (blackhead) in turkeys. II. Observations on transmission by the cecal worm (Heterakis gallinae);Swales;Canad. J. Comp. Med.,1948