Development and Internal Evaluation of EAST-BMS (East Asian Survival Tool for Bone Metastasis Surgery): A Multinational Machine-learning Survival Prediction Model for Patients Undergoing Surgery for Nonspinal Bone Metastasis in East Asia. - Yang E; Lin HC; Shimomura S; Lee J; Kim HS; Yen HK; Iwata S; Lin WH; Han I (Clinical orthopaedics and related research, 2026)