Editor-in-Chief Osong Public Health and Research Perspectives, Korea Centers for Disease Control and Prevention, Cheongju, Korea
Professor Emeritus College of Medicine, Eulji University, Daejeon, Korea
Managing Editor Osong Public Health and Research Perspectives, Korea Centers for Disease Control and Prevention, Cheongju, Korea
Copyright © 2016 Korea Centers for Disease Control and Prevention. Published by Elsevier Korea LLC.
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).