Kodisinghe, H.M.; Perera, K.L.R.L.; Premawansa, S.; Naotunne, T. de S.; Wickremasinghe, A.R.; Mendis, K.N.
(Oxford University Press, 1997)
Blood from 1053 persons who presented for treatment at outpatient clinics of government health institutions in Sri Lanka, and 250 who took part in a blood survey for malaria, was examined by thick blood film microscopy ...