Lan, Qiaoshuai
Xia, Shuai
Wang, Qian
Xu, Wei
Huang, Haiyan
Jiang, Shibo
Lu, Lu
Article History
Received: 21 November 2019
Accepted: 14 January 2020
First Online: 7 March 2020
Compliance with ethics guidelines
: Qiaoshuai Lan, Shuai Xia, Qian Wang, Wei Xu, Haiyan Huang, Shibo Jiang, and Lu Lu declare no conflict of interest. This manuscript is a review article and does not involve a research protocol requiring approval by relevant institutional review board or ethics committee.