1. Seasonal, severity and case fatality distribution from ruptured oesophagogastric varices;Amer;Journal of the Egyptian Medical Association,1970
2. Morbidity in schistosomiasis mansoni in relation to intensity of infection: study of a community in Machakos, Kenya;Arap Siongok;American Journal of Tropical Medicine and Hygiene,1976
3. Aerobic work capacity in men and women with special reference to age;Åstrand;Acta Physiologica Scandinavica,1960
4. Quantitative egg excretion and work capacity in a Gezira population infected with Schistosoma mansoni;Awad El Karim;American Journal of Tropical Medicine and Hygiene,1980
5. Evolution of the clinical gradient of Schistosoma mansoni infection in a small town in north-eastern Brazil;Barbosa;Bulletin of the World Health Organization,1969