Chung, S.-C. , Chang, C.-D. , Shen, P.-C. , Lin, W. , Ting, C.-H. and Wu, H.-Y. 2021. Investigation of Avian polyomavirus and Psittacine beak and Feather disease virus in parrots in Taiwan. The Thai Journal of Veterinary Medicine. 51, 2 (Feb. 2021), 239–245.