Guo, Qi https://orcid.org/0000-0001-7684-4072
Song, Wei-dong
Li, Wei
Zeng, Chao
Li, Yan-hong
Mo, Jian-ming
Lü, Zhong-dong
Jiang, Mei
Article History
Received: 27 March 2020
Accepted: 8 June 2020
First Online: 12 June 2020
Ethics approval and consent to participate
: The study was approved by our Institutional Review Board (Review Board of Peking University, No. 20172318). This study was conducted in accordance with the ethical standards of the amended Helsinki Declaration. Ethical approval from the regulation committee (Ethical Committee of Shenzhen) was granted for the study protocol. Written informed consent was obtained from the patient prior to enrollment. They were informed the content of the study on admission and then signed the documents if they agreed.
: Not applicable.
: The authors declare that they have no competing interests.Funding: This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.