Hussein, O., Ahmed, M. (1999). Ventilation Tube Insertion: Oto-Endoscopy versus Surgical Microscopy (Comparative Study). Journal of University of Babylon, 19(3), 266-271.
Omar Ali Hussein; Muhammed Dheia Ahmed. "Ventilation Tube Insertion: Oto-Endoscopy versus Surgical Microscopy (Comparative Study)". Journal of University of Babylon, 19, 3, 1999, 266-271.
Hussein, O., Ahmed, M. (1999). 'Ventilation Tube Insertion: Oto-Endoscopy versus Surgical Microscopy (Comparative Study)', Journal of University of Babylon, 19(3), pp. 266-271.
Hussein, O., Ahmed, M. Ventilation Tube Insertion: Oto-Endoscopy versus Surgical Microscopy (Comparative Study). Journal of University of Babylon, 1999; 19(3): 266-271.