Article History
First Online: 4 February 2019
Compliance with Ethical Standards
:
: Xiafei Wang, Qiong Wu, and Susan Yoon all declare that they have no conflict of interest.
: This study was approved by the Ohio State University Institutional Review Board for the use of non-public data of FFCWS. This study is a secondary data analysis, so no human participants and/or animals have been involved in this project.