P873: IXAZOMIB VERSUS LENALIDOMIDE OR IXAZOMIB AND LENALIDOMIDE COMBINATION AS MAINTENANCE REGIMEN FOR TRANSPLANT-INELIGIBLE MULTIPLE MYELOMA: UPDATE OF A MULTI-CENTER PROSPECTIVE STUDY IN CHINA

oleh: Zhe Zhuang, Ying Tian, Lei Shi, Hong Yu, Qinhua Liu, Dongmei Zou, Weiwei Tian, Ru Feng, Fei Dong, Yanping MA, Shuangjiao Liu, Hongmei Jing, Hui Liu, Liangming MA, Wanling Sun, Rong Fu, LI Bao, Yin Wu, Wenming Chen, Junling Zhuang