Efficacy and safety of second-line axitinib in octogenarians with metastatic renal cell carcinoma. Issue 5 (June 2021) - Nakai, Yasutomo; Takeuchi, Ario; Osawa, Takahiro; Kojima, Takahiro; Hara, Tomohiko; Sugimoto, Mikio; Eto, Masatoshi; Minami, Keita; Ueda, Kosuke; Ozawa, Michinobu; Uemura, Motohide; Miyauchi, Yasuyuki; et al.