Perera, K.V.H.K.K.Chan, K.H.Peiris, J.S.M.2016-01-142016-01-142010The Ceylon Medical Journal, 55(2)pp.40-44https://dl.nsf.gov.lk/handle/1/21782Medical SciencesInfluenza virus infections among a sample of hospital attendees in Ragama, Sri LankaArticle