Randomized controlled phase III trial to investigate superiority of robot-assisted gastrectomy over laparoscopic gastrectomy for clinical stage T1-4aN0-3 gastric cancer patients (JCOG1907, MONA LISA study): a study protocol

Rie Makuuchi 1, Masanori Terashima 2, Mitsumi Terada 3, Junki Mizusawa 4, Ryosuke Kita 4, Masanori Tokunaga 5, Takeshi Omori 6, Toshiyasu Ojima 7, Kazuhisa Ehara 8, Masaya Watanabe 9, Yoshitomo Yanagimoto 10, Souya Nunobe 1, Takahiro Kinoshita 11, Seiji Ito 12, Yasunori Nishida 13, Jun Hihara 14, Narikazu Boku 15, Yukinori Kurokawa 16, Takaki Yoshikawa 17; Stomach Cancer Study Group of Japan Clinical Oncology Group