Table 4. The possible symmetry of location of the most prominent dorsal MCV between both hands in the same subject.

Most prominent dorsal MCV	Right and left hand frequency
A1	4 (1)
A2	22 (5)
A3	51 (13)
A4	5 (1)
B1	2 (0.5)
B2	8 (2)
No vein	25 (6)
Total	117/402 (29)

Values are presented as number (%). MCV, metacarpal vein.