Yang, Hua-Xia
Xu, Yuan
Liang, Nai-Xin http://orcid.org/0000-0002-4777-8595
Chen, Wei
Yan, Xue-Min
Yang, Ping
Guan, Zhi-Yuan
Pfeiffer, Carol A.
Li, Qi
Zhao, Jun
Pan, Hui
Funding for this research was provided by:
the Small Scale Characteristic Teaching Reform Project of Peking Union Medical College Hospital (No. 2014zlgc0140 and 2104zlgc0136)
the Young Teacher Training Program of Peking Union Medical College (No. 14-2014zlgc0717)
Teaching Reform Project of Peking Union Medical College Hospital (No. 2014zlgc0135)
Article History
Received: 27 February 2018
Accepted: 23 May 2019
First Online: 17 June 2019
Ethics approval and consent to participate
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the Institutional Review Board of Ethics Committee of Peking Union Medical College Hospital and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The requirement for informed consent to participate was waived because the review of the patients’ data was anonymous.
: Not applicable.
: The authors declare that they have no competing interests.