Funding for this research was provided by:
National Natural Science Foundation of China (31271087; 31470981; 31571137; 31500885)
Text and Data Mining valid from 2019-01-07
First Online: 7 January 2019
Compliance with ethical standards
: This study was approved by the local ethics committee of Southwest China University and the Institutional Human Participants Review Board of the Southwest University Imaging Center for Brain Research. The methods were conducted in accordance with the approved guidelines. All participants provided written informed consent prior to taking part in the study.
: All authors declare that they have no conflict of interest.
: All procedures performed in the studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: This article does not contain any studies with human participants performed by any of the authors.
: Informed consent was obtained from all individual participants included in the study.