Clinical efficacy of apatinib combined with S-1 in the treatment of advanced esophageal cancer
Zhang Xuewei, Su Peiying, Peng Lei, Lu Xin, Yuan Lei, Gao Yujuan
Journal of International Oncology . 2021, (1): 30 -34 .  DOI: 10.3760/cma.j.cn371439-20200216-00005