Table 2.

Specific acupuncture methods of each acupoint.

Acupoints	Location	Insert angle	Insert depth
Baihui (GV20)	On the head, 5 cun directly above the midpoint of the anterior hairline	15°	0.5 cun
Shenting (GV24)	On the head, 0.5 cun directly above the midpoint of the anterior hairline	15°	0.5 cun
Yintang (GV29)	On the head, at the intersection of the line between the two brows and the front midline	15°	0.5 cun
Hegu (LI4) (bilateral)	On the dorsum of the hand, between the first and second metacarpal bones, approximately in the middle of the second metacarpal bone on the radial side	90°	0.5 cun
Jiuwei (CV15)	On the anterior median line of the upper abdomen, 1 cun below the Xiphisternal Synchondrosis	45°	0.5 cun
Zhongwan (CV12)	On the anterior median line of the upper abdomen, 4 cun above the navel	90°	1 cun
Qihai (CV6)	On the lower abdomen, on the front midline, 1.5 cun below the navel	90°	0.5 cun
Sanyinjiao (SP6) (bilateral)	On the medial side of the shank, 3 cun above the medial malleolus, by the posterior of the tibia	90°	1 cun
Taichong (LR3) (bilateral)	On the dorsum of the foot, in the depression proximal to the first metatarsal space	45°	0.5 cun

A 1 cun (≈20 mm) is defined as the width of the interphalangeal joint of the patient's thumb.