Kim, S.-J.
Park, H.-S.
Lee, D.-W.
Lee, J.-W.
Article History
Received: 4 February 2018
Accepted: 13 May 2018
First Online: 1 June 2018
Compliance with ethical standards
: Prior approval for this study was obtained from the Scientific Review Board of Hanil General Hospital.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki Declaration and its later amendments.
: None.