About the Authors

Guo-Bo Chen

Affiliations Institute of Bioinformatics, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China, Section on Statistical Genetics, Department of Biostatistics, University of Alabama at Birmingham, Birmingham, Alabama, United States of America

Yi Xu

Affiliation Institute of Bioinformatics, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China

Hai-Ming Xu

Affiliation Institute of Bioinformatics, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China

Ming D. Li

Affiliation Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, Virginia, United States of America

Jun Zhu

xlou@ms.soph.uab.edu (X-YL); jzhu@zju.edu.cn (JZ)

Affiliation Institute of Bioinformatics, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China

Xiang-Yang Lou

xlou@ms.soph.uab.edu (X-YL); jzhu@zju.edu.cn (JZ)

Affiliation Section on Statistical Genetics, Department of Biostatistics, University of Alabama at Birmingham, Birmingham, Alabama, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GBC XYL. Performed the experiments: GBC XYL. Analyzed the data: GBC YX HMX. Wrote the paper: GBC MDL JZ XYL.