Table 3. Level of statistical significance for the comparison of diffusion halos among the commercially-available BTX-A per doses used.

Product	Dose 1	Dose 2	Dose 3	Dose 4	Dose 5
North-Americanvs. Korean	0.106	0.149	0.649	0.816	0.608
*North-American vs.* French**	0.024	0.689	0.816	0.807	0.745
*North-American vs.* Chinese**	0.007	0.005	0.010	0.076	0.096
*North-American vs.* German**	<0.001	<0.001	<0.001	<0.001	<0.001
*Korean vs.* French**	0.713	0.066	0.991	0.634	0.355
*Korean vs.* Chinese**	0.306	0.193	0.016	0.066	0.244
*Korean vs.* German**	0.008	<0.001	<0.001	<0.001	<0.001
*French vs.* Chinese**	0.476	0.002	0.018	0.037	0.041
*French vs.* German**	0.014	<0.001	<0.001	<0.001	<0.001
*Chinese vs.* German**	0.073	0.018	0.003	<0.001	0.005