1. Can primary health workers screen for oral cancer?;Warnakulasuriya;World Health Forum,1983
2. Control of oral cancer in developing countries;World Health Organization;Bull World Health Organ,1984
3. National training of radiotherapists in Sri Lanka and Zimbabwe: priorities and strategies for cancer control in developing countries;Stjernsward;Int J Radiat Oncol Biol Phys,1990
4. National cancer control programmes: policies and managerial guidelines;World Health Organization,1993
5. Quantifying the burden of disease and injury attributable to ten major risk factors;Murray,1996