title: Estimation of provider cost and the out of pocket expenditure for cataract surgery at a base hospital
authors.affiliation: Postgraduate Institute of Medicine, University of Colombo, Sri Lanka. chinthaka159perera@yahoo.co.uk
authors.forename: C
authors.initials: C
authors.lastname: Perera
authors.forename: D
authors.initials: D
authors.lastname: De Silva
authors.forename: L R
authors.initials: L R
authors.lastname: Perera