Larval migration studies on Toxascaris leonine (Nematoda: Ascaridoidea) in Assiut, Egypt. Egypt. Research Authors Mazen, N. A., El-Shimy, N. A. and Mandour and A. M. Alrifai, A. A., Research Journal J. Med. Sci. 27 (2):481-492 Research Rank 2 Research Year 2006