RT Journal Article SR Electronic T1 A Case Report of Tracheal Extramedullary Plasmacytoma JF Chinese Journal of Clinical Oncology JO Cancer Biol Med FD China Anti-Cancer Association SP 311 OP 312 DO 10.1007/s11805-008-0311-0 VO 5 IS 4 A1 Kun Wang A1 Yunchao Huang A1 Anning Chen YR 2008 UL http://www.cancerbiomed.org/content/5/4/311.abstract AB