Optimal Relative Dose Intensity in the First 4 Weeks During Nab-Paclitaxel Plus Gemcitabine for Older Patients With Advanced Pancreatic Cancer in Japan. Issue 1 (January 2022) - Iede, Kiyotsugu; Yamada, Terumasa; Koh, Masahiro; Ueda, Masami; Tsuda, Yujiro; Nakashima, Shinsuke; Ohta, Katsuya; Tanida, Tsukasa; Matsuyama, Jin; Ikenaga, Masakazu; Tominaga, Shusei