1. Department of Microbiology, University of Health Sciences, Lahore, Pakistan;
2. Institute of Nursing Sciences, Khyber Medical University, Peshawar, Pakistan;
3. University College of Nursing, The Islamia University of Bahawalpur, Bahawalpur, Pakistan;
4. Department of Pathology, Ameer Ud Din Medical College, Lahore, Pakistan;
5. Department of Nursing, University of Health Sciences, Lahore, Pakistan;
6. Department of Hematology, University of Health Sciences, Lahore, Pakistan