1. Claude Bernard. An Introduction to the Study of Experimental Medicine. Dover Books, New York, 1957.
2. WB Cannon: The Wisdom of the Body. Norton, New York, 1939.
3. EF Adolph. Early concepts of physiologic regulations. Physiological Review. 1961; 41: 737.
4. LL Langley. Homeostasis: Origin of the Concept. Dowden, Hutchinson, & Ross, Stroudsberg, PA, 1973.
5. N. Weiner. Concept of homeostasis in medicine. Trans. Coll. Physicians Philadelphia, 20: 87 1948.