BERKUN, M. M., KESSEN, M. L., & MILLER, N. E. Hunger-reducing effects of food by stomach fistula versus food by mouth measured by a consummatory response. J. comp. physiol. Psychol., 1952, 45, 550–554.
GOODMAN, L. S., & GILMAN, A. The pharmacological basis of therapeutics. New York: The Macmillan Co., 1965.
JANOWITZ, H. D., & GROSSMAN, M. I. Some factors affecting the food intake of normal dogs and dogs with esophagostomy and gastric fistula. Am. J. Physiol., 1949, 159, 143–148.
KOHN, M. Satiation of hunger from food injected directly into the stomach versus food ingested by mouth. J. comp. physiol. Psychol., 1951, 44, 412–422.
MILLER, N. E., & KESSEN, M. L. Reward effects of food via stomach fistula compared with those of food via mouth. J. comp. physiol. Psychol., 1952, 45, 555–564.
SHARE, I., MARTYNIUK, E., & GROSSMAN, M. I. Effect of prolonged intragastric feeding on oral food intake in dogs. Amer. J. Physiol., 1955, 48, 387–391.
SMITH, M., & DUFFY, M. The effects of intragastric injection of various substances on subsequent bar-pressing. J. comp. physiol. Psychol., 1955, 48, 387–391.