Roh, Y. H.
Lee, E. S.
Ahn, J.
Kim, H. S.
Gong, H. S.
Baek, K. H.
Chung, H. Y.
Article History
Received: 4 December 2018
Accepted: 14 March 2019
First Online: 3 April 2019
Compliance with ethical standards
: This study obtained the ethics approval from the ethical committee of the Ewha Womans University Medical Center.
: None.