The inestigators note that factors that hae probably contributed to improed surial are high-dose melphalan with subsequent autologous stem cell transplantation, thalidomide, and a continuous improement in supportie care.

• 研究人员注意到高剂量苯丙氨酸氮芥和后续的自体干细胞移植，反应停，以及支持治疗的不断改善很可能是提高生存率的影响因素。