Funding for this research was provided by:
CAMS Innovation Fund for Medical Sciences (2016-I2M-3-025)
Text and Data Mining valid from 2018-04-23
Received: 5 February 2018
Accepted: 17 April 2018
First Online: 23 April 2018
Ethics approval and consent to participate
: The study was approved by the ethics committee of the Chongqing People’s Hospital.
: The authors declare that they have no competing interests.
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