M. Ijaz, A. Rehman, M.M. Ali, M. Umair, S. Khalid, K. Mehmood, A. Hanif
1 Department of Clinical Medicine and Surgery; Department of Epidemiology and Public Health; University of
2 Veterinary and Animal Sciences Lahore, 54000, Punjab, Pakistan; Department of Epidemiology & Public Health,
3 University of Salford, Manchester, United Kingdom; King Edward Medical University, Lahore
4 University College of Veterinary & Animal Sciences, Islamia University of Bahawalpur