**Author details**

Shu-Yan Ng1 \*, Wing-Yan Chan2 , Tsz-Ki Ho2 and Yin-Ling Ng2

\*Address all correspondence to: ngshuyanhcc@gmail.com

1 Wanchai Chiropractic Clinic, Wanchai, Hong Kong

2 Spine Technology Ltd, Wanchai, Hong Kong
