Protocol for a randomized study of the efficacy of ibandronic acid plus eldecalcitol in patients with gastric cancer after gastrectomy: A comparative study of different routes of a... oleh Hideki Murakami, Sunao Ito, Shuji Takiguchi, Yuichiro Mizuno, Tomotaka Okubo, Takuya Usami, Yuta Goto, Hiroaki Kimura, Jumpei Inoue, Hiroyuki Sagawa, Hiroya Hashimoto, Hisaki Aiba, Nobuyuki Suzuki