About the Authors

Yunxian Zhou

yunxianzhou@hotmail.com

Affiliation School of Nursing, Zhejiang Chinese Medical University, Hangzhou, China

Competing Interests

The author has declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YZ. Performed the experiments: YZ. Analyzed the data: YZ. Contributed reagents/materials/analysis tools: YZ. Wrote the paper: YZ. Study design, data collection, and manuscript draft: YZ.