Ashraf Hesham Tawfik Abulnasr <br/><br/>
Neurosurgical aspects of posterior skull base tumours /  
 اوجه جراحة الأعصاب لأورام قاع الجمجمة الخلفى 
Ashraf Hesham Tawfik Abulnasr ; Supervised Salah Eldin Mohamed Kahla , Abdelaliem Abdelmonem Ragab , Mohamed Elmortada Elbastawisi 
 - Cairo :   Ashraf Hesham Tawfik Abulnasrb ,   1998 
 - 395 P. :   facsimiles ;   25cm 
<br/><br/>Thesis (Ph.D.) - Cairo University - Faculty of Medicine- Department of Neurosurgery