Researchers from Peking University have developed ERTool, an open-source Python package designed to simplify the implementation of the Evidential Reasoning (ER) approach for multi-source evidence fusion. This tool addresses the challenges of integrating data from multiple sources in uncertain decision-making environments. The results are published in Health Data Science.Researchers from Peking University have developed ERTool, an open-source Python package designed to simplify the implementation of the Evidential Reasoning (ER) approach for multi-source evidence fusion. This tool addresses the challenges of integrating data from multiple sources in uncertain decision-making environments. The results are published in Health Data Science.[#item_full_content]