http://www.nuffieldhealth.com/consultants/viswanath-y-k-s
http://www.independent.co.uk/life-style/health-and-families/health-news/
persisted-heartburn-sufferers-urged-to-visit-doctor-to-rule-out-cancer-8
662677.html
http://www.bupa.co.uk/individuals/health-information/directory/h/hiatus-hernia