1. 1) World Health Organization. Coronavirus disease (COVID -19) pandemic. https: //www.who.int/emergencies/diseases/novel-coronavirus-2019. Accessed April 8, 2020.
2. 2) Givi B., Schiff B.A., Chinn S.B., et al: Safety recommendations for evaluation and surgery of the head and neck during the COVID-19 pandemic. JAMA Otolaryngol Head Neck Surg. 2020 Mar 31 doi: 10.1001/jamaoto.2020.0780.
3. 3) Saadi R.A., Bann D.V., Patel V.A., et al: A Commentary on safety precautions for otologic surgery during the COVID-19 pandemic. Otolaryngol Head Neck Surg. 2020 Apr 14 doi: 10.1177/0194599820919741.194599820919741.
4. 4) Ueda K, Ota I, Yamanaka T, et al: The impact of vertigo/dizziness outpatients at ENT department during the COVID-19 pandemic in Japan. Auris Nasus Larynx, in press.
5. 5) World Health Organization: Global diffusion of eHealth: Making universal health coverage achievable. Report of the third global survey on eHealth, 2016.