de Silva, H.J.de Silva, N.R.2014-10-292014-10-291995The Ceylon Medical Journal. 1995; 40(4): pp.134-1360009-0875 (Print)http://repository.kln.ac.lk/handle/123456789/1241Indexed in MEDLINENo Abstract AvailableIntestinal Diseases, ParasiticHelminthiasis-prevention and controlIntestinal Diseases, Parasitic-epidemiologyIntestinal Diseases, Parasitic-prevention and controlReviewMedicineParasitology