Amarasiri, W.A.D.L.Ranasingha, C.Pathmeswaran, A.De Silva, H.J.2016-04-012016-04-0120078th Annual Research Symposium of the Faculty of Graduate Studies, University of Keleniya, 19th December 2007https://dl.nsf.gov.lk/handle/1/23089Validation of a Gastro-oesophageal Reflux Disease specific screening instrument for epidemiological purposes (Abstract)ArticleRG/2004/M/007FR 1470, FR 1642T