Liu, Defeng
Zhang, Xiaohang
Zheng, Tao
Shi, Qinglei
Cui, Yujie
Wang, Yongji
Liu, Lanxiang http://orcid.org/0000-0002-7434-4434
Funding for this research was provided by:
National Key Research and development program of the Ministry of Science and Technology (2017YFB1002300)
Article History
Received: 20 August 2020
Accepted: 17 November 2020
First Online: 4 January 2021
Compliance with ethical standards
:
: Author Qinglei Shi was employed by the company Siemens Ltd.. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
: Data collection protocols were approved by the Ethics Committee of Qinhuangdao Municipal No.1 hospital, and the need for informed consent was waived.
: All participants in this retrospective study had anonymous information and the need for informed consent was waived.