Funding for this research was provided by:
Ministry of Science and Technology of the People's Republic of China (2015BAI12B04, 2013BAI09B03, 2012CB720704)
National Natural Science Foundation of China (H0906 81771234, H0906 81571110)
Beijing Institute for Brain Disorders grant (BIBD-PXM2013_014226_07_000084)
Text and Data Mining valid from 2018-07-02
Received: 24 April 2018
Accepted: 1 June 2018
First Online: 2 July 2018
Ethics approval and consent to participate
: The study protocol was approved by the Institutional Review Board of Beijing Tiantan Hospital, Capital Medical University. The ethical batch number is KY2017–054-01. Written informed consent was obtained from all participants and their guardians at admission.
: The authors declare that they have no competing interests.