Editors & Editorial Board Editor-in-Chief In-Hong Choi, M.D., Ph.D., Yonsei Univ., Korea Associate Editor Chang-Ok Suh, M.D., Ph.D., Yonsei Univ., Korea Executive Editor Jung-Won Park, M.D., Ph.D., Yonsei Univ., Korea Editorial Board Sharon Adler, M.D., Harbor-UCLA Medical Center, USA Yong Sik Kim, M.D., Ph.D., Seoul Nat'l Univ., Korea Joong Bae Ahn, M.D., Ph.D., Yonsei Univ., Korea Masaki Kitajima, M.D., International Univ. of Health and Welfare, Japan Seungmin Bang, M.D., Ph.D., Yonsei Univ., Korea Jin Young Kwak, M.D., Ph.D., Yonsei Univ., Korea Perry F. Bartlett, BDSc, Ph.D., FAA, Univ. Queensland, Australia Young Lan Kwak, M.D., Ph.D., Yonsei Univ., Korea John P. Bilezikian, M.D., Columbia Univ., USA Hye-Jeong Lee, M.D., Ph.D., Yonsei Univ., Korea Malcolm N. Blumenthal, M.D., Univ. Minnesota, USA Jae Woon Lee, Ph.D., Oregon Health & Science Univ., USA Jong-Yil Chai, M.D., Ph.D., Seoul Nat'l Univ., Korea Jeong Rim Lee, M.D., Ph.D., Yonsei Univ., Korea Jae Hee Cheon, M.D., Ph.D., Yonsei Univ., Korea Phil Hyu Lee, M.D., Ph.D., Yonsei Univ., Korea Kyunghee C. Cho, M.D., FACR, New Jersey Medical School, USA Sang-Hak Lee, M.D., Ph.D., Yonsei Univ., Korea Byung Ho Choi, M.D., Ph.D., Univ. California, USA David J. Lim, M.D., Univ. Southern California, USA Hye Jin Choi, M.D., Yonsei Univ., Korea Jong-Baeck Lim, M.D., Ph.D., Yonsei Univ., Korea Hak Choy, M.D., Vanderbilt Univ., USA In Seok Moon, M.D., Ph.D., Yonsei Univ., Korea Yong-Min Chun, M.D., Ph.D., Yonsei Univ., Korea Chung Mo Nam, Ph.D., Yonsei Univ., Korea Jin Mo Chung, Ph.D., Univ. Texas, USA Jahn M. Nesland, M.D., Ph.D., Univ. of Oslo, Norway J. William Futrell, M.D., Univ. Pittsburgh, USA Sang Ho Oh, M.D., Ph.D., Yonsei Univ., Korea Won Sik Ham, M.D., Ph.D., Yonsei Univ., Korea Shin Joong Oh, M.D., Univ. Alabama, USA Jung Woo Han, M.D., Yonsei Univ., Korea Eun Sook Park, M.D., Ph.D., Yonsei Univ., Korea Anthony D. Ho, M.D., Univ. Heidelberg, Germany Young Nyun Park, M.D., Ph.D., Yonsei Univ., Korea Waun Ki Hong, M.D., Univ. Texas, USA Kenneth J. Pienta, M.D., Univ. Michigan, USA Masayuki Imamura, M.D., Ph.D., Kyoto Univ., Japan Dong Yeob Shin, M.D., Yonsei Univ., Korea Hyeon Joo Jeong, M.D., Ph.D., Yonsei Univ., Korea Myeong Heon Shin, M.D., Ph.D., Yonsei Univ., Korea Boyoung Joung, M.D., Ph.D., Yonsei Univ., Korea Chang Won Song, Ph.D., Univ. Minnesota, USA Chan Y. Jung, Ph.D., State Univ. New York, USA Hiroshi Takami, M.D., Ph.D., Teikyo Univ., Japan Eun Seok Kang, M.D., Yonsei Univ., Korea Glenn Talaska, Ph.D., Univ. Cincinnati, USA Do Young Kim, M.D., Ph.D., Yonsei Univ., Korea William Tasman, M.D., Thomas Jefferson Univ., USA Hyoung-Il Kim, M.D., Yonsei Univ., Korea Hirotsugu Ueshima, M.D., Ph.D., FFPHM, Shiga Univ., Japan Jong Sung Kim, M.D., Ph.D., Univ. Ulsan, Korea Toshiaki Watanabe, M.D., Teikyo Univ., Japan Moon Hyun Kim, M.D., Univ. California, USA John G. Webster, Ph.D., Univ. Wisconsin-Madison, USA Sung Hoon Kim, M.D., Ph.D., Yonsei Univ., Korea Eung Je Woo, Ph.D., Kyung Hee Univ., Korea Tae-im Kim, M.D., Ph.D., Yonsei Univ., Korea Heun Young Yune, M.D., FACR, Indiana Univ., USA.