Comparison of Survival Between Autologous and Allogeneic Stem Cell Transplantation in Patients with Relapsed or Refractory B-Cell Non-Hodgkin Lymphoma: A Meta-Analysis oleh Jianhong Wang MD, Xiaohui Duan MD, Lijie Yang MD, Xiangxiang Liu MD, Caixia Hao MD, Hongjuan Dong MD, Hongtao Gu PhD, MD, Hailong Tang PhD, MD, Baoxia Dong MD, Tao Zhang PhD, MD, Guangxun Gao PhD, MD, Rong Liang PhD, MD