1. Social class and the major cardiovascular diseases;Antonowsky;J. Chron. Dis.,1968
2. The relation between smoking habits and physique, respiratory symptoms, ventilatory function and radiological pneumoconiosis among coal workers at three Scottish collieries;Ashford;Brit. J. Prev. Soc. Med.,1961
3. Salt and hypertension;Dahl;Amer. J. Clin. Nutr.,1972
4. Environmental factors in hypertension;Dawber,1967