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Fig. 3 | Trials

Fig. 3

From: Treatment with L-citrulline in patients with post-polio syndrome: study protocol for a single-center, randomised, placebo-controlled, double-blind trial

Fig. 3

Randomisation placebo:verum 1:1. Association of sample size (N) and the mean relative improvement of the verum group in the 6-min Walking Distance Test at follow-up (θ), assuming no improvement in the placebo group, for a randomisation ratio of 1:1 into the placebo and verum groups, respectively. Curves are smoothed for illustration purposes only

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