Li, Jia
Sheng, Bo
Liu, Xin
Yu, Fan
Lv, Fajin
Lv, Furong
Yang, Haitao http://orcid.org/0000-0002-7596-2859
Article History
Received: 20 June 2019
Revised: 10 November 2019
Accepted: 13 November 2019
First Online: 3 January 2020
Compliance with ethical standards
:
: The scientific guarantor of this publication is Haitao Yang.
: The authors declare that they have no conflict of interest.
: Dr. Li Ren kindly provided statistical advice for this manuscript. No complex statistical methods were necessary for this paper.
: Written or oral informed consent was obtained from all subjects (patients) in this study.
: Institutional review board’s approval was obtained.
: Some study subjects or cohorts have been previously reported in Haitao Yang, ExternalRef removed, February 4, 2019 [Epub ahead of print].
: • retrospective• observational• performed at one institution