Yang, Huiliang
Im, Gi Hye
Nielsen, Gunnlaugur Petur
Kheterpal, Arvin
Schwab, Joseph H.
Article History
Received: 29 October 2017
Revised: 2 February 2018
Accepted: 5 February 2018
First Online: 3 March 2018
Compliance with ethical standards
: All procedures performed in studies involving human participants were in accordance with ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: The authors declare that they have no conflicts of interest.
: Informed consent was obtained from all the participant included in the study.