1. Potential Health Effects of Climatic Change;World Health Organization,1990
2. Global environmental change and human population health: a conceptual and scientific challenge for epidemiology;McMichael;International Journal of Epidemiology,1993
3. World malaria situation in 1990;World Health Organization;World Health Statistics Quarterly,1992
4. The control of schistosomiasis;World Health Organization;WHO Technical Report Series, 830,1993
5. Human tropical diseases in a changing environment;Bradley,1993