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- J. W. McKean, Helen L Naug, Elham Nikbakht, Bianca Amiet, Natalie J. Colson
- Journal of alternative and complementary medicine
- 2017

INTRODUCTION/AIM
Interest in the gut-brain axis and emerging evidence that the intestinal microbiota can influence central nervous system function has led to the hypothesis that probiotic supplementation can have a positive effect on mood and psychological symptoms such as depression and anxiety. Although several human clinical trials have investigated… (More)

- J. W. McKean, Thomas A. Ryan
- ACM Trans. Math. Softw.
- 1977

Suppose we are sampling from two populations which have the same continuous distribution except for a possible shift in location. For notational convenience let X1, . . . , X,~ be a random sample from F ( x ) and let Y1, • • • , Y~ be a random sample from F ( x -8). In testing hypotheses concerning 0 the robust two-sample r ank test (Wilcoxon-Mann-Whitney)… (More)

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