1Center for Lung Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea 2Department of Pathology, Research Institute and Hospital, National Cancer Center, Goyang, Korea
Corresponding author:
Bin Hwangbo Tel: 82-031-920-1718 Fax: 82-031-920-1275 Email: hbb@ncc.re.kr
Received: 16 April 2018 • Accepted: 21 August 2018