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		| 1. |  | 
				|  | Pages 477-481 | 
				|  | yasser  bedir; alaa eldin abdallah ismael; hamdy Mahmoud Badreldin | 
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		| 2. |  | 
				|  | Pages 483-492 | 
				|  | Ahmed Mahmoud Ali; Ibrahim Farouk Barakat; Alaa Nabil Abbas | 
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		| 3. |  | 
				|  | Pages 493-499 | 
				|  | Amr Abd Elhameed El sherbiny Mohamed; alaa eldin abdallah ismael; Alaa Nabil Abbas | 
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		| 4. |  | 
				|  | Pages 501-506 | 
				|  | Abdelmageed Mohamed Harras; alaa eldin abdallah ismael; hamdy Mahmoud Badreldin | 
				|  |  | 
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		| 5. |  | 
				|  | Pages 507-515 | 
				|  | Mohamed Ahmed Mahmoud; Ibrahim Farouk Barakat; Alaa Nabil Abbas; Ahmed  EL-Husseiny | 
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