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Fecal bile acid excretion in male wild-type and Ostα−/− mice fed a 0.2% cholic acid-containing diet for 4 days. Feces were collected daily to measure the bile acid content and the cumulative excretion is shown (mean ± SE; n = 6). (Inset) The daily rate of fecal bile acid excretion is shown. An asterisk indicates significant differences between groups (P < 0.05).
