Table 3.

Characterization of volunteers taking part in the study.

No	Age	Gender	Colour	Hair coloring	Length (cm)
1	46	Male	Black	No	1–2
2	45	Male	Black	No	3–4
3	28	Female	Brown	Yes	3
4	23	Male	Black	No	8–9
5	32	Male	Black	No	2–3
6	34	Male	Black	No	1
7	50	Female	Blond	Yes	3–4
8	53	Female	Black	Yes	3–4
9	28	Male	Black	No	3–4
10	22	Female	Blond	No	12–14
11	27	Female	Black	No	7–9
12	24	Female	Brown	No	7
13	23	Female	Brown	No	7
14	23	Male	Brown	No	0.5
15	61	Male	Black-Gray	No	1
16	35	Male	Black	No	1
17	55	Male	Black-Gray	No	0.5
18	49	Male	Black	No	6–7
19	23	Male	Brown	No	11
20	22	Female	Black-Brown	Yes	5
21	56	Female	Brown	Yes	3–4
22	55	Female	Brown–Red	Yes	5–6
23	48	Female	Brown	Yes	3–4
24	46	Female	Black	Yes	8–10
25	50	Male	Grey	No	0.5
26	31	Female	Brown	Yes	–
27	27	Female	Brown	No	6–7
28	67	Female	White	No	6
29	34	Male	Black	No	0.5
30	59	Male	Black	No	3