Purushothaman Ganesan(1*), Purushothaman Pavanjur Kothandaraman(2), Simham Swapna(3), Vinaya Manchaiah(4) 1 Expert Hearing Solutions, Wall Street Audiology Inc., Saskatoon, Saskatchewan, Canada. 2 Department of Otorhinolaryngology, SRM Medical College Hospital and Research Centre, Chennai, Tamil Nadu, India. 3 Hindu Mission Hospital, Chennai, ...