**Acknowledgements**

We are thankful to the Indian Council of Medical Research (ICMR), Government of India (No. 3/1/3/ICRMR-VFS/HRD/2/2016), and Tata Education and Development Trust (Health-NIMR-2017-2101-03/AP/db) for financial and infrastructural support to conduct the research at NIMR. Tanwee Das De is the recipient of the ICMR postdoctoral fellowship scheme (3/1/3/PDF(18)/2018-HRD). *Sino-Nasal and Olfactory System Disorders*
