Basit Zeshan, Mushtaq A. Saleem, Javed Iqbal Wattoo, Mohd Mokhtar Arshad and Maizan Mohamed. 2018. Cloning and Expression of Truncated Spike (Sf200) Glycoprotein of Infectious Bronchitis Virus (IBV) in Escherichia coli, and its Immunogenicity to Mice. Pakistan J. Zool., 50: 989-994.