/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: MahmoudTharwat9 https://cdn.slidesharecdn.com/profile-photo-MahmoudTharwat9-48x48.jpg?cb=1709901784 Dr.Mahmoud Tharwat Student at Faculty of Medicine ,Al-Azhar university ,Cairo.