Funding for this research was provided by:
Ministry of Science and Technology of P.R. China (2016YFC0901703, 2016YFC0901905)
Text and Data Mining valid from 2019-04-25
Received: 7 December 2017
Accepted: 1 April 2019
First Online: 25 April 2019
Ethics approval and consent to participate
: This study was conducted based on the anonymous history EMR data from Dayi Hospital (Shanxi, China). The data sharing and utilization agreements were signed and approved by the IRB of Dayi Hospital (Project N.O. 2012AA02A601). The patient consent was waived, as utilization of anonymized history data does not require patient consent.
: Not applicable.
: The authors declare that they have no competing interests.
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