Individualized Opioid Titration for Complex Symptom Management in Terminally Ill Cancer Patients Receiving Home Hospice Care: A Prospective Cohort Study - Kunihiko Watanabe; Kumi Tochimura; Hiromi Fujita; Yukie Kushima; Kazuhiko Kushima; Yuki Kamiyama; Akemi Hemmi (American Journal of Hospice and Palliative Medicine®, 2026)