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This paragraph from example#2 is relevant;
The overall effectiveness is summarized as follows: Six or roughtly 40% expereinced excellent relief of their spasticity as judged by both their personal assessment and the neurological exam. Four or 29% experienced good reduction in spasticity and another 29% experienced no relief at all. The mean duration of effect was 9 hours with a range of 3-24 hours. On occasion, subjects experienced relief from several days up to a week.
1. Apparatus for reducing spacticity of neurologically impaired patients comprising: