Applicable Symptoms: SIR-Spheres® Yttium-90 Microsphere Injection, is the only product in the world for selective internal radiation therapy (SIRT) for colorectal cancer liver metastases. It has been used by more than 150,000 people in over 50 countries and regions around the world. It is also recommended by the treatment guidelines issued by different international authoritative organizations such as Barcelona Clinic Liver Cancer Guidelines (BCLC), National Comprehensive Cancer Network (NCCN), European Society for Medical Oncology (ESMO), European Association for the Study of the Liver (EASL), National Institute for Health and Care Excellence (NICE), etc. and has been included in several authoritative clinical practice guidelines in China, including the “2022 CSCO Guidelines for Diagnosis and Treatment of Primary Liver Cancer” (《二零二二年 CSCO 原發性肝癌診療指南》), the “Guidelines for Diagnosis and Treatment of Primary Liver Cancer (2022 edition)” (《原發性肝癌診療指南(2022 版)》), “Chinese Guidelines for Diagnosis and Comprehensive Treatment of Colorectal Cancer Liver Metastases (2018 edition)” (《中國結直腸癌肝轉移診斷和綜合治療指南(2018 版)》), “Clinical Practice Guidelines for Liver Cancer and Liver Transplantation in China (2018 edition)” (《中國肝癌肝移植臨床實踐指南 (2018 版)》), etc.