Muhammad Fayyaz Khan, Mohammad Farid Khan, Muhammad Ashfaq and Gul Majid Khan
Journal of Biological Sciences 2 ( 3 ): 145 - 150 , 2002
Muhammad Farid Khan, Muhammad Fayyaz Khan and Gul Majid Khan
Journal of Medical Sciences 1 ( 4 ): 235 - 238 , 2001
Muhammad Fayyaz Khan, Mohammad Farid Khan, Muhammad Ashfaq and Gul Majid Khan
Journal of Medical Sciences 1 ( 5 ): 327 - 333 , 2001