Author = Hassanin, Ola A.A.
Prevalence of Chlamydophila psittaci in some Wild and Pet Birds

Volume 45, Issue 3, September 2017, Pages 206-217

Ahmed M. Hegazy; Mohamed A. El-sisi; Ola Hassanin; Hala M.N. Tolba; Heba A Baz

The Negative Impact of Chicken Infectious Anemia Virus Infection on Immune Responses to Different Newcastle Disease Virus Vaccination Programs

Volume 44, Issue 2, June 2016, Pages 138-148

Mohamed A. Lebdah; Mohamed M. Megahed; Ola A.A. Hassanin; Amira M.I. Ali