1. Department of Zoology, University of Peshawar, Peshawar, Khyber Pakhtunkhwa, Pakistan.
2. Department of Immunology and Infection, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom.
3. Combined Military Hospital, Peshawar, Khyber Pakhtunkhwa, Pakistan.
4. Khyber Teaching Hospital, Peshawar, Khyber Pakhtunkhwa, Pakistan.
5. Kuwait Teaching Hospital, Peshawar, Khyber Pakhtunkhwa, Pakistan.