1. Holdane ES Ross GRT , eds (1970) The philosophical works of Descartes. (Cambridge University Press, New York).
2. Wolf S (1965) The stomach. (Oxford University Press, New York).
3. The measurement and recording of gastroduodenal blood flow in man by means of a thermal gradientometer.;Richards;J Clin Invest,1942
4. Experimental studies on the irritable colon
5. Brain-gut axis in health and disease