Affiliation: | 1. Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Korea;2. Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea;3. Center for Lung Cancer, National Cancer Center of Korea, Goyang, Korea;4. Hematology‐Oncology Clinic, National Cancer Center of Korea, Goyang, Korea;5. Department of Urology, College of Medicine, The Catholic University of Korea, Seoul, Korea;6. Fax: +82‐2‐537‐6586. |