1. Favus MJ: Factors that influence absorption and secretion of calcium in the small intestine and colon. Am J Physiol 248:G147-G157, 1985
2. Karbach U: Mechanism of intestinal calcium transport and clinical aspects of disturbed calcium absorption. Dig Dis 7:1?18, 1989
3. Walling WVW, Favus MJ, Kimberg DV: Effects of 25-hydroxyvitamin D3 on rat duodenum, jejunum, and ileum. Correlation of calcium active transport with tissue levels of vitamin D3 metabolites. J Biol Chem 249:213?217, 1974
4. Karbach U: Segmental heterogeneity of cellular and paracellular calcium transport across the rat duodenum and jejunum. Gastroenterology 100:47?58, 1991
5. Nellans HN, Kimberg DV: Anomalous calcium secretion in rat ileum: Role of paracellular pathway. Am J Physiol 236:E473-E481, 1979