Table 1.

Demographic data of the volunteers.

20s		30s		40s
Sex	Age	Sex	Age	Sex	Age
F	22	F	30	M	41
F	23	F	32	F	43
M	23	M	32	F	43
M	23	F	33	M	43
F	25	F	33	F	45
M	26	M	33	M	45
M	26	F	34	F	46
F	28	M	34	M	46
M	28	M	38	F	48
F	29	M	38	M	49