About the Authors

Yuan Zhou

Affiliation Medical College, Hunan Normal University, Changsha, China

Li Tian

Affiliation Medical College, Hunan Normal University, Changsha, China

Lingzhi Long

Affiliation Medical College, Hunan Normal University, Changsha, China

Meifang Quan

Affiliation Medical College, Hunan Normal University, Changsha, China

Fei Liu

Affiliation Medical College, Hunan Normal University, Changsha, China

Jianguo Cao

caojianguo2005@yahoo.com.cn

Affiliation Medical College, Hunan Normal University, Changsha, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JGC. Performed the experiments: YZ LT LZL. Analyzed the data: MFQ. Contributed reagents/materials/analysis tools: FL. Wrote the paper: YZ.