Text and Data Mining valid from 2019-02-25
Received: 13 December 2018
Accepted: 15 February 2019
First Online: 25 February 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: This study was subject to approval by the Ethics Committee Board of the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China.
: Written informed consent was issued by the patients for the publication of this study. A copy of the written consent is ready for review by the Editor in Chief of this journal.