Table 1. General characteristics.

Characteristics		Experimental group (n=10)	Control group (n=10)
Age (yr)	30–39	2	1
	40–49	1	2
	50–59	3	3
	60–69	2	2
	70–79	2	2
Sex	Male	6	5
	Female	4	5
Affected Side	Right	4	4
	Left	6	6