4Schemann M, SchaafC, MaderM. Neurochemicalcoding of enrerie neurons in the guinea pig stomach. J Comp Neurol, 1995,353:161
5Sims SM, Jiao Y, Preiksaitis HG. Regulation of intracellular calcium in human esophageal smooth muscles. Am J Physiol,1997, 273:1679
6Lee TL, Ang SB, Dambisya YM, et al. The effect of propofol on human gastric and colonic muscle contraction. Anesth Analg, 1999, 89:1246
7Lordal M, Theodorsson E, Hellstrom PM. Tachykinms influence interdigestive rhythm and contractive strength of human small intestine. Dig Dis Sci, 1997, 42:1940
8Wheatley IM, Hutson JM, Chow CW, et al. Slow-transit constipation in childhood, J Pediatr Sury, 1999, 34:829
9Maake C, Kloas W, Szendefim, ct al. Neurohormonal peptides,serotonin and nitric oxide synthase in the enteric nervous system and endocrine cells of the gastrointestinal tract of neotenic and thyroid hormone-treated axolotls. Cell Tissue Res, 1999, 297:90
