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Issue Date	Title	Author(s)
2005	Prevalence and impact of malocclusion among school children aged 12 and 15 years in Gampaha District and their knowledge on malocclusion.	Rodrigo, S.D.S.P
1997	Comparative study of decayed, missing and filled teeth (D.M.F.T.) among 12 year old, children attending Government and Private Schools in the Gampaha M.O.H. area.	Rodrigo, S.D.S.P
2008	Study of factors affecting readmission of elders	Riyaz, A.M.M
2000	Study on the needs and availability of health care services for elders in the divisional director of health services area of Akkaraipattu	Riyaz, A.M.M
1995	Study on the prevalance of condom use in Dehiwala Mount Lavinia Municipal Council Area	Rifai, M.A.C.M
1991	Awareness of Dental treatment modalities of patients attending for dental treatment.	Ravindran, K
2007	Study on prevalence and factors associated with the behavioural problems amoung year one school children in Municipal Council area of Matale	Ratnayake, R.M.M
2008	Prevalence and risk indicators of tooth wear in 17 year old school children in Colombo District in Sri Lanka	Ratnayake, N.C
2003	Prevelence and impact of oral pain in 8-year -old school children in Badulla Education Division	Ratnayake, N.C
2007	Attitudes and practices of health care providers at the Colombo North Teaching Hospital towards patients with alcohol related health conditions and related factors	Ratnayake, L.V.R
1987	Study of the control of urban filariasis by the case detection method through night blood filming and treatment programme.	Ratnapriya, W.M.S
9-Dec-2011	Prevalence and risk indicators of tooth wear in 17 year old school children in Colombo District in Sri Lanka.	Ratnayake, N.C
2010	Results with combination chemotherapy for high-risk gestational trophoblastic tumours 1989 to 2006 : retrospective non - randomized study	Rathnayake, R.W.M.W.K
2008	Induction of labour and its outcome in a Teaching Hospital	Rathnayake, R.W.M.D.S
2007	Study on knowledge and attitudes among management and non management health staff towards existing perfomance appraisal system and, identification of implementation gaps in curative primary care institutions of Badulla health region	Rathnayake, R.M
2008	Comparative analysis of utilization of financial allocation in four selected hospitals	Rathnayake, P.M
2005	Risk factors affecting low birth weight among mothers who deliver low birth weight babies at Base Hospital, Gampola	Rathnayake, H.A
2005	Transvaginal ultrasonography in women with postmenopausal bleeding	Rathnayaka, R.M.P.D
2004	Induction of labour and its outcome in a Teaching Hospital.	Rathnayaka, K.P.J
2006	Prevalence of temporo-mandibular disorderd (TMD) among advanced level students in Government Schools in the Colombo Education area	Rasika, G.H.T