About the Authors

Weiwei Peng

Contributed equally to this work with: Weiwei Peng, Li Hu

Affiliation Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong, China

Li Hu

Contributed equally to this work with: Weiwei Peng, Li Hu

huli@swu.edu.cn (LH); yhud@hku.hk (YH)

Affiliation Key Laboratory of Cognition and Personality, Ministry of Education, and School of Psychology, Southwest University, Chongqing, China

Zhiguo Zhang

Affiliation Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, China

Yong Hu

huli@swu.edu.cn (LH); yhud@hku.hk (YH)

Affiliation Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: WWP LH YH. Performed the experiments: WWP LH. Analyzed the data: WWP LH ZGZ. Contributed reagents/materials/analysis tools: WWP LH ZGZ. Wrote the paper: WWP LH ZGZ YH. Contributed to final approval of the version to be published: YH.