APA
Saafan M. E., Ragab S. M., Albirmawy O. A. & Elsherif H. S. (20130617). Powered versus conventional endoscopic sinus surgery instruments in management of sinonasal polyposis. : European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery.
Chicago
Saafan Magdy E, Ragab Sameh M, Albirmawy Osama A and Elsherif Hosam S. 20130617. Powered versus conventional endoscopic sinus surgery instruments in management of sinonasal polyposis. : European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery.
Harvard
Saafan M. E., Ragab S. M., Albirmawy O. A. and Elsherif H. S. (20130617). Powered versus conventional endoscopic sinus surgery instruments in management of sinonasal polyposis. : European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery.
MLA
Saafan Magdy E, Ragab Sameh M, Albirmawy Osama A and Elsherif Hosam S. Powered versus conventional endoscopic sinus surgery instruments in management of sinonasal polyposis. : European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery. 20130617.