Funding for this research was provided by:
Research Fund of the China-Japan Friendship Hospital (2013-RC-3)
Foundation of capital characteristic clinical application research (2106-BKJ-004)
Text and Data Mining valid from 2018-04-23
Received: 24 September 2017
Accepted: 18 April 2018
First Online: 23 April 2018
Ethics approval and consent to participate
: This study was approved by the Medical Ethics Committee of China-Japan Friendship Hospital. The reference number is: 2016–62. Written informed consents were obtained from all the participants or his/her parents/legal representatives (for participant under 18 years old).
: The authors declare that they have no competing interests.
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