Funding for this research was provided by:
National Key Scientific Instrument and Equipment Development Projects of China (2017YFC1311000, 2016YFC0904600)
National Natural Science Foundation of China (81602168)
Chinese Academy of Medical Sciences Innovation Fund for Medical Sciences (2017-I2M-2-005, 2016-I2M-1-001)
Received: 4 February 2020
Accepted: 30 October 2020
First Online: 23 November 2020
Ethics approval and consent to participate
: This study was approved by our Institutional Review Board and informed consent is waived from Institutional Review Board as its retrospective nature.
: Not applicable.
: All authors report no competing interests in this work.