Vellamparambil Sreejaraj, Paul Vazhapilly Sumam, Verghese Nevil, Karuthedath Sridevi, Ariyamparampil Rajagopalan Vinayakumar. Prevalence of Helicobacter pylori colonisation in tonsillar tissue in cases of chronic tonsillitis: a prospective study. International Journal of Otorhinolaryngology and Head and Neck Surgery| May – June 2018 | Vol 4| Issue 3| Pages: 1- 4 | pISSN 2454 - 5929.
Anoop Varghese Kuruvilla, Sumam Paul Vazhappilly. A study of the hearing status in the contralateral healthy ear of patients with chronic otitis media following mastoidectomy surgery in a tertiary care hospital, Kerala, India. International Journal of Otorhinolaryngology and Head and Neck Surgery | March 2022| Vol 8| Issue 3| Pages: 174 – 179 | pISSN 2454 - 5929.