Xu, Ning
Yang, Weiliang
Liu, Yang
Yan, Feng
Yu, Zhange
Article History
Received: 6 August 2017
Accepted: 18 January 2018
First Online: 16 February 2018
Change Date: 9 April 2024
Change Type: Clarification
Change Details: Editor's Note: Readers are alerted that the concerns have been raised with this article. Editorial action will be taken as appropriate once this matter is resolved and all parties have been given an opportunity to respond in full.
Compliance with ethical standards
: The study was approved by the Ethic Committee of The First Affiliated Hospital of Harbin Medical University and informed consent was obtained from each patient.