Ren, Hongmin http://orcid.org/0000-0002-4494-0921
Luo, Xueqing http://orcid.org/0000-0001-9003-2660
Wan, Chunping http://orcid.org/0000-0002-7338-1428
Liu, Minggui http://orcid.org/0000-0002-4648-5977
Li, Na http://orcid.org/0000-0003-3201-7221
Xia, Lanting http://orcid.org/0000-0001-6498-8343
Liu, Yanju http://orcid.org/0000-0003-3563-0558
Ouyang, Hui http://orcid.org/0000-0002-4584-3357
Zhang, Jinlian http://orcid.org/0000-0001-5327-8020
Article History
Received: 20 June 2019
Accepted: 17 September 2019
First Online: 13 February 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The authors declare that the procedures followed were in accordance with the regulations of the relevant clinical research ethics committee and with those of the Code of Ethics of the World Medical Association (Declaration of Helsinki).
: The authors declare that no patient data appear in this article.
: The authors declare that no patient data appear in this article.