1. The role of nicotine in the tobacco smoking habit;Armitage,1978
2. An analysis of transformations;Box;Journal of the Royal Statistical Society,1964
3. Neural mechanism in pain: A conceptual model;Casey,1968
4. Visceral pain;Davis;Surgery, Gynecology and Obstetrics,1932
5. The measurement of situational influences of smoking;Epstein;Addictive Behaviors,1977