title: Authors' reply.
authors.affiliation: Zezhi Li, MD, PhD, Chen Zhang, MD, PhD, Yiru Fang, MD, PhD, Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China. Email: yirufang@aliyun.com.
authors.forename: Zezhi
authors.initials: Z
authors.lastname: Li
authors.affiliation: Zezhi Li, MD, PhD, Chen Zhang, MD, PhD, Yiru Fang, MD, PhD, Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China. Email: yirufang@aliyun.com.
authors.forename: Chen
authors.initials: C
authors.lastname: Zhang
authors.affiliation: Zezhi Li, MD, PhD, Chen Zhang, MD, PhD, Yiru Fang, MD, PhD, Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China. Email: yirufang@aliyun.com.
authors.forename: Yiru
authors.initials: Y
authors.lastname: Fang
mesh_terms: D001714:Bipolar Disorder / Q000175:diagnosis*; D019208:Brain-Derived Neurotrophic Factor / Q000097:blood*; D003865:Major Depressive Disorder / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male
chemical_list: D019208:Brain-Derived Neurotrophic Factor