Funding for this research was provided by:
National Natural Science Foundation of China (61272388, 61702141)
the Harbin Applied Technology Research and Development Project (2016RQQXJ105)
the University Student Innovation and Entrepreneurship Training Program in Heilongjiang Province (201610226012)
Text and Data Mining valid from 2019-11-12
Received: 8 June 2019
Accepted: 25 October 2019
First Online: 12 November 2019
Ethics approval and consent to participate
: The study was approved by the the Second Affiliated Hospital, Harbin Medical University. The patients and their families have read and signed the informed consent form.
: Written informed consent was obtained from all patients included in this report for the use of clinical-related materials for scientific research and publications.
: The authors declare that they have no competing interests.