Response to Pembrolizumab After Dose-Reduced Cisplatin Plus Gemcitabine Chemotherapy Is Inferior to That After Carboplatin Plus Gemcitabine Chemotherapy in Cisplatin-Unfit Patients With Advanced Urothelial Carcinoma

Makito Miyake, Takuto Shimizu, Nobutaka Nishimura, Keisuke Kiba, Fumisato Maesaka, Yuki Oda, Akira Tachibana, Mitsuru Tomizawa, Chihiro Ohmori, Yoshiaki Matsumura, Kazuki Ichikawa, Shinichiro Mizobuchi, Takanosuke Yoshikawa, Shunta Hori, Yosuke Morizawa, Daisuke Gotoh, Yasushi Nakai, Satoshi Anai, Kazumasa Torimoto, Katsuya Aoki, Nobumichi Tanaka, Kiyohide Fujimoto