Psychological barriers to the use of opioid analgesics for treating pain in patients with advanced recurrent cancer (BAROC): protocol for a multicentre cohort study
Takehiko Tsuno, Tatsuhiro Fujimiya, Takashi Kawaguchi, Ryota Yanaizumi, Keiko Kojima, Akime Miyasato, Kanako Azuma, Tomoya Saeki, Hironori Mawatari, Takashi Igarashi, Tomofumi Miura, Hiroyuki Ogura, Junichi Kondo, Tadashi Tanoue, Hiroshi Hamada, Yu Oyama, Akira Kotani, Takuhiro Yamaguchi, Hideki Hakamata
BMJ Open Mar 2022, 12 (3) e054914; DOI: 10.1136/bmjopen-2021-054914