1. Sarfraz Latif:
Department of ENT, Head and Neck Surgery, Federal Postgraduate Medical Institute and Sheikh Zayed Hospital, Lahore, Pakistan.
2. Naveed Aslam:
Department of ENT, Head and Neck Surgery, Federal Postgraduate Medical Institute and Sheikh Zayed Hospital, Lahore, Pakistan.
3. Faisal Bashir:
Department of ENT, Head and Neck Surgery, Federal Postgraduate Medical Institute and Sheikh Zayed Hospital, Lahore, Pakistan.
4. Raheel Ahmed:
Department of ENT, Head and Neck Surgery, Federal Postgraduate Medical Institute and Sheikh Zayed Hospital, Lahore, Pakistan.