Hashimoto, MPharm, M.; Aogaki, BPharm, K.; Numata, PhD, C.; Moriwaki, PhD, K.; Matsuda, MD, Y.; Ishii, MD, PhD, R.; Tanaka, BPharm, I.; Okamoto, PhD, Y. Factors Influencing the Prescribed Dose of Opioid Analgesics in Cancer Patients. J of Opioid Management 2020, 16, 247-252.