Soysa, E.M.N.; Suraweera, S.A.S.S.; Thewage, A.P.; Thudugala, M.T.K.L.; Anjula, S.A.P.D.; Perera, K.M.N.(College of Community Physicians of Sri Lanka, 2021)
Jayarathne, N.P.M.W.; Jayalath, H.B.S.; Jayasooriya, M.G.N.B.; Jayasooriya, Y.T.; Jayasundara, H.P.P.I.; Perera, K.M.N.(College of Community Physicians of Sri Lanka, 2021)
Pathirage, C.K.; Padmasiri, U.G.M.; Nuwarapakshage, N.S.R.P.; Panditharatne, W.D.; Hewawardhane, S.N.; Perera, K.M.N.(College of Community Physicians of Sri Lanka, 2021)