Funding for this research was provided by:
Fund of Special research of TCM in Capital City (17ZY02)
Fund for Beijing Science & Technology Development of TCM (JJ2016-14)
Application of Clinical Features of Capital City of Science and Technology Commission (Z171100001017082)
Received: 12 August 2018
Accepted: 23 October 2018
First Online: 6 November 2018
Ethics approval and consent to participate
: The study was approved by the ethics committee of Beijing Ditan Hospital, Capital Medical University.
: Written informed consent was obtained from each patient. Information that could identify individual participants during or after data collection was not accessible.
: The authors declare that they have no competing interests. We declare that we do not have any commercial or associative interest that represents a conflict of interest in connection with the work submitted.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.