1. Chronic Conditions and Limitations of Activity and Mobility;National Center for Health Statistics,1971
2. Digestive Diseases;AI,1971
3. The prevalence of anaemia in the elderly;Parsons;Practitioner,1965
4. Geographic and environmental aspects of peptic ulcer;Welsh;Am J Med,1960
5. Gastric cancer—a decrescent malignancy;Crumb;Surgery,1970