Shafiq, A., Arshad, A., Qurashi, Z.-U.-A., Khalid, Z., Huda, N.U., Noman, M., Ilyas, M., Rashid, H.B., Mehmood, A.K., Hasan, S., Ain, Q., Amir, S., Shahid, S., Sadiq, S. and Chaudhry, M. 2021. Estimation of percentage of morbidity and mortality due to avian influenza (H9) at commercial poultry layer farms of Lahore. The Thai Journal of Veterinary Medicine. 51, 4 (Nov. 2021), 753–757.