1Department of Pathology, Chungnam National University, Korea.
2Department of Pathology, Samsung Medical Center, Korea.
3Department of Pathology, Korea Cancer Center Hospital, Korea.
4Department of Pathology, Asan Medical Center, Korea.
5Department of Pathology, Catholic University of Korea, Korea.
6Department of Pathology, Seoul National University, Korea.
7Department of Pathology, Seoul Paik Hospital, Korea.
8Department of Pathology, Dankook University, Korea.
9Department of Pathology, Kangbuk Samsung Hospital, Korea.
10Department of Pathology, Konkuk University, Korea.
11Department of Pathology, Seoul Veterans Hospital, Korea.
12Department of Pathology, Sanggye Paik Hospital, Korea.
13Department of Pathology, Soonchunhyang University Bucheon Hospital, Korea.
14Department of Pathology, Chonnam National University, Korea.
15Department of Pathology, Wonkwang University, Korea.
16Department of Pathology, Hanyang University, Korea.
17Department of Pathology, Kyungpook National University, Korea.
18Department of Pathology, Hanyang University Guri Hospital, Korea.
19Department of Pathology, Soonchunhyang University, Korea.
20Department of Pathology, Gyeongsang University, Korea.
21Department of Pathology, KyungHee University, Korea.
22Department of Pathology, Eulji University Daejeon Hospital, Korea.
23Department of Pathology, Chosun University, Korea.
24Department of Pathology, Chonbuk National University, Korea.
25Department of Pathology, Kosin University, Korea.
26Department of Pathology, Keimyung University, Korea.
27Department of Pathology, Ewha Womans University, Korea.
28Department of Pathology, Ulsan University, Korea.
29Department of Pathology, Inha University, Korea.
30Department of Pathology, Ajou University, Korea.
31Department of Pathology, Dong-A University, Korea.
32Department of Pathology, Korea University, Korea. iskim@korea.ac.kr