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Effect of pretreatment with hexamethonium (hx) (intravenously) on the deoxycholic acid (DCA) effect on clearance of mannitol and urea in the proximal (A) and distal (B) colon. Values for the effect on clearance of DCA from fig 1 ▶ are included. Values are mean (SEM), n = 7. *p<0.05 compared with the previous period; ††p<0.01, †††p<0.001 compared with saline+DCA values.
