Highly Diverse Efficacy of Salvage Treatment Regimens for Relapsed or Refractory Peripheral T-Cell Lymphoma: A Systematic Review. oleh Ya-Ting Yang, Cheng-Jeng Tai, Chiehfeng Chen, Hong-Cheng Wu, Natalia Mikhaylichenko, Hsien-Tsai Chiu, Yun-Yi Chen, Yi-Hsin Elsa Hsu