Siddique, N., Naeem, K., Ahmed, Z., & Malik, S. A. (2008). Evaluation of RT-PCR for the Detection of Influenza Virus Serotype H9N2 among Broiler Chickens in Pakistan. International Journal of Poultry Science, 7(11), 1122–1127. https://doi.org/10.3923/ijps.2008.1122.1127