About the Authors
Intelligent Medical Research Center, Institute of Automation, Chinese Academy of Sciences, Beijing, China
Life Science Research Center, School of Electronic Engineering, Xidian University, Xi'an, Shaanxi, China
The authors have declared that no competing interests exist.
Conceived and designed the experiments: YBY LJB RWD. Performed the experiments: YBY CGZ TX. Analyzed the data: YBY LJB CGZ. Contributed reagents/materials/analysis tools: HW ZYL WJW. Wrote the paper: JT.