About the Authors

Feng Zhu

Affiliations College of Medicine and Forensics, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, People's Republic of China, Key Laboratory of the Health Ministry for Forensic Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China, Key Laboratory of the Education Ministry for Environment and Genes Related to Diseases, Xi'an, Shaanxi, People's Republic of China

Chun-xia Yan

yanchunxia@mail.xjtu.edu.cn (C-XY); shbinlee@mail.xjtu.edu.cn (SBL)

Affiliations College of Medicine and Forensics, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, People's Republic of China, Key Laboratory of the Health Ministry for Forensic Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China, Key Laboratory of the Education Ministry for Environment and Genes Related to Diseases, Xi'an, Shaanxi, People's Republic of China

Yi-chong Wen

Affiliations College of Medicine and Forensics, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, People's Republic of China, Key Laboratory of the Health Ministry for Forensic Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China, Key Laboratory of the Education Ministry for Environment and Genes Related to Diseases, Xi'an, Shaanxi, People's Republic of China

Jiayin Wang

Affiliation The Genome Institute, Washington University, Saint Louis, Missouri, United States of America

Jinbo Bi

Affiliations The Genome Institute, Washington University, Saint Louis, Missouri, United States of America, Department of Community Medicine and Health Care, School of Medicine University of Connecticut Health Center, Farmington, Connecticut, United States of America

Ya-ling Zhao

Affiliations Key Laboratory of the Education Ministry for Environment and Genes Related to Diseases, Xi'an, Shaanxi, People's Republic of China, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, People's Republic of China

Lai Wei

Affiliations College of Medicine and Forensics, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, People's Republic of China, Key Laboratory of the Health Ministry for Forensic Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China, Key Laboratory of the Education Ministry for Environment and Genes Related to Diseases, Xi'an, Shaanxi, People's Republic of China

Cheng-ge Gao

Affiliation Department of Psychiatry, First Affiliated Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, People's Republic of China

Wei Jia

Affiliation Methadone Maintenance Therapy Clinic, Xi'an Mental Health Center, Xi'an, Shaanxi, People's Republic of China

Sheng-bin Li

yanchunxia@mail.xjtu.edu.cn (C-XY); shbinlee@mail.xjtu.edu.cn (SBL)

Affiliations College of Medicine and Forensics, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, People's Republic of China, Key Laboratory of the Health Ministry for Forensic Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China, Key Laboratory of the Education Ministry for Environment and Genes Related to Diseases, Xi'an, Shaanxi, People's Republic of China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: FZ CXY SBL. Performed the experiments: FZ YCW LW. Analyzed the data: JYW JBB YLZ. Contributed reagents/materials/analysis tools: CGG WJ. Wrote the paper: FZ CXY.