Case ReportPublished 8 October 2026Case Report: Application of the 6D BTS digital assessment system in the comprehensive management of refractory cancer pain in a patient with gallbladder carcinomaJing Ren · Yuewen Li · Kunzhong Zhou · Yunhua Wang · Quanli Wang · Dongmei Hu · Tingting Song · Hui Dong · Zhijuan Cheng · Changrong Hu · Kunxiang Huang · Yuan Zhang · Li ZhuangFrontiers in Pain Researchdoi 10.3389/fpain.2026.1808441