Liu, Ningning
Zhang, Yue
Shan, Kun
Yang, Rui
Zhang, Xuening
Article History
Received: 18 January 2019
Accepted: 18 April 2019
First Online: 24 April 2019
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: Written informed consent was obtained from the patients for publication of this study and any accompanying images.
: Ethical approval was obtained by the local institutional review board (Ethical Committee of Tianjin Medical University Second Hospital).
: The datasets used and/or analyzed during the current study are available from the corresponding author upon reasonable request.