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Effects of probiotic compounds on defecation in a mouse model of constipation. (A) Gastrointestinal transit rates. (B) Times to first black stool defecation. (C) Number of black stools. (D) Weight of black stools. Data are means with SEM. a–d: Different letters indicate significant differences (p < 0.05), and the same letters or no letters indicate no significant difference. Same as below.
