1. Defining the magnitude of ocular complications from leprosy: problems of methodology;Courtright, P.D.,1988
2. Expert Committee on Leprosy, Sixth Report;WHO,1988
3. Reliability of skin smear results: experiences with quality control of skin smears in different routine services in leprosy control programs;Vettom, L.; Pritze, S.;Lepr Rev,1989
4. Classification of leprosy according to immunity;Ridley, D.S.; Jopling, W.H.;IntJLepr,1966
5. Prevention of blindness of leprosy;Courtright, P.; Johnson, G.J.,1991