About the Authors

Feng Ding

Affiliation Department of Genetics, Stanford University, Stanford, California, United States of America

Hong Hua Li

Affiliation Department of Genetics, Stanford University, Stanford, California, United States of America

Shengwen Zhang

Affiliation Department of Psychiatry and Behavioral Science, Stanford University, Stanford, California, United States of America

Nicola M. Solomon

Affiliation Department of Human Genetics, University of Michigan, Ann Arbor, Michigan, United States of America

Sally A. Camper

Affiliation Department of Human Genetics, University of Michigan, Ann Arbor, Michigan, United States of America

Pinchas Cohen

Affiliation Department of Pediatrics, University of California Los Angeles, Los Angeles, California, United States of America

Uta Francke

*E-mail: ufrancke@stanford.edu

Affiliations Department of Genetics, Stanford University, Stanford, California, United States of America, Department of Pediatrics, Stanford University, Stanford, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: UF FD. Performed the experiments: HL FD SZ NS. Analyzed the data: SC UF HL FD SZ NS. Wrote the paper: UF FD.