Chief Editor: Reda Kamel1

General Secretary: Ahmed Ragab2

General Coordinator: Baliegh Hamdy3

Scientific Board: Ashraf Khaled,4 Mohamed Ghonaim,5 Mahmoud Abdel Aziz,6 Tarek Ghanoum,7 Mahmoud Yousef8

Chief  Editor: Reda Kamel1

General Secretary: Ahmed Ragab2

General Coordinator: Baliegh Hamdy3

Scientific Board: Ashraf Khaled,4 MahmoudAbdelAziz,5  MohamedGhonaim,6 TarekGhanoum,7 MahmoudYoussef8

Phoniatrics Chief Manager: MahmoudYoussef8

Phoniatrics Executive Manager: Dalia Mostafa9

Assembly Board: Samia Bassiouny,8 TamerAbou-Elsaad,10 Ayman Shawky,11 Ahlam A.N.El-Adawy,12 Yossra Abdel Naby Sallam,13 Effat Zaky,14 Ahmed Ali15

Grading Board (In alphabetical order)

SafaaElSady,8 AishaFawzy,9 NirvanaHafez,8 Dalia Mostafa9

Reviewing Board: MarwaSaleh,8 RehamElMaghraby16

1Otorhinolaryngology Department, Faculty  of  Medicine/  Cairo  University,

 2Otorhinolaryngology Department,  Faculty  of Medicine/Menoufia University,

3Otorhinolaryngology Department,FacultyofMedicine/MiniaUniversity,

4Otorhinolaryngology Department,FacultyofMedicine/Beni-SuefUniversity,

5Otorhinolaryngology Department,FacultyofMedicine/TantaUniversity,

6Otorhinolaryngology Department, Faculty of Medicine/ Mansoura University,

7AudiovestibularUnit, Otorhinolaryngology Department, FacultyofMedicine/CairoUniversity,

8Phoniatrics Unit,OtorhinolaryngologyDepartment, FacultyofMedicine/ Ain ShamsUniversity,

 9Phoniatrics Unit, Otorhinolaryngology Department,Faculty ofMedicine/ Cairo University,

10Phoniatrics Unit,Otorhinolaryngology Department,FacultyofMedicine/MansouraUniversity,

11Phoniatrics Unit,Otorhinolaryngology Department,FacultyofMedicine/MilitaryArmedForces,

12Phoniatrics Unit,OtorhinolaryngologyDepartment,FacultyofMedicine/ SohagUniversity,

13Phoniatrics Unit,OtorhinolaryngologyDepartment,FacultyofMedicine/Al-AzharUniversity,

14Phoniatrics Unit, Otorhinolaryngology Department, Faculty of Medicine/ Minia University,

15PhoniatricsUnit, Otorhinolaryngology Department, Faculty ofMedicine/ Beni-SuefUniversity, 16PhoniatricsUnit, Otorhinolaryngology Department,Faculty of Medicine/Alexandria University.

Other specialties related to this guideline:    Audiology, Paediatrics, and Radiology.

Sincere thanks extend to the secretaries: Samar Hussein and Eman Ragab, as well as the editor: Mohamed Salah