Authors
Carukshi Arambepola
Department of Public Health and Primary Health Care, University of Oxford, Old Road Campus, Headington, Oxford OX3 7LF, UK; Department of Community Medicine, Faculty of Medicine, University of Colombo, No. 25, Kynsey Road, Colombo 8
Dulitha Fernando
Department of Community Medicine, Faculty of Medicine, University of Colombo, No. 25, Kynsey Road, Colombo 8
