Dian-Jun Qi, Department of General Practice, the First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
Qing-Fu Zhang, Department of Pathology, the First Affiliated Hospital and College of Basic Medical Sciences of China Medical University, Shenyang 110001, Liaoning Province, China
Author contributions: Qi DJ and Zhang QF conceived the study; Qi DJ searched the published articles, analyzed the data, and wrote the manuscript; Zhang QF reviewed and confirmed the final version of the manuscript and provided funding.
Supported by Natural Science Foundation of Liaoning Province in China, No. 81572621 and No. 2019-MS-370.
Informed consent statement: Informed written consent was obtained from the patient for publication of this report and any accompanying images.
Conflict-of-interest statement: The authors declare that they have no conflicts of interest.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Corresponding author: Qing-Fu Zhang, MD, Associate Professor, Department of Pathology, the First Affiliated Hospital and College of Basic Medical Sciences of China Medical University, No. 155, Nanjing North Street, Heping District, Shenyang 110001, Liaoning Province, China. firstname.lastname@example.org
Telephone: +86-24-83282946 Fax: +86-24-83282946
Received: April 19, 2019
Peer-review started: April 22, 2019
First decision: June 12, 2019
Revised: June 27, 2019
Accepted: July 20, 2019
Article in press: July 20,2019
Published online: September 6, 2019