%0 Journal Article %T The Evaluation of Cellular Immunity to Avian Viral Diseases: Methods, Applications, and Challenges %A Hao, Xiaoli %A Zhang, Fan %A Yang, Yi %A Shang, Shaobin %J Frontiers in Microbiology %V 12 %D 2021-12-07 %I Frontiers Media S.A. %~ DeepDyve