, Ki-Bum Ahn2, Christine Kim3, Jong-Won Kum4, Hiran Perinpanayagam5
, Yu Gu1, Yeon-Jee Yoo1
, Seok Woo Chang6
, Seung Hyun Han2, Won-Jun Shon1, Woocheol Lee1, Seung-Ho Baek1
, Qiang Zhu7, Kee-Yeon Kum1
1Department of Conservative Dentistry, Seoul National University Dental Hospital, Seoul National University School of Dentistry and Dental Research Institute, Seoul, Korea. JFIF d d Ducky d qhttp://ns.adobe.com/xap/1.0/