1. Duodenal ulcer in Mysore;Tovey;Trop Geogr Med,1972
2. Peptic ulcer in India and Bangladesh;Tovey;Gut,1979
3. Duodenal ulcer in black populations in Africa south of the Sahara;Tovey;Gut,1975
4. Duodenal ulcer;Tovey,1985
5. Duodenal and gastric ulcer in Soweto;Segal;S Afr Med J,1983