Li, Yiming
Zhu, Jiangting
Zhang, Yunjie
Liu, Xiarong
Ye, Junru https://orcid.org/0000-0002-4146-9142
Article History
Received: 6 June 2020
Accepted: 27 July 2020
First Online: 30 July 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study was reviewed and approved by the First Affiliated Hospital of Chengdu Medical College ethical committee. The study protocol followed the guidelines of the 1964 Helsinki declaration and its later amendments or comparable ethical standards. All patients signed informed consent before participating in the study.
: Informed consent was obtained from all the participants included in the study.
: The authors affirm that human research participants provided informed consent for publication of the images in Figs. and .