References
- Biggs , P.M. 2006 . The World Veterinary Poultry Association: the beginnings and first 25 years . Avian Pathology , 35 : 417 – 428 .
- Kaiser , P. 2010 . Advances in avian immunology-prospects for disease control: a review . Avian Pathology , 39 : 309 – 324 .