Received: 14 December 2020
Accepted: 26 March 2021
First Online: 5 April 2021
: The ethics committee at The Second Affiliated Hospital of Xi'an Jiaotong University had approved this study. Written informed consent was obtained from individual or guardian participants.
: All machine learning methods were carried out in accordance with the “Guidelines for Developing and Reporting Machine Learning Predictive Models in Biomedical Research”. And the protocol conformed to the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.