Retracted: Nursing Value Analysis and Risk Assessment of Acute Gastrointestinal Bleeding Using Multiagent Reinforcement Learning Algorithm...F. Liu, X. Liu, C. Yin, et al. “Nursing Value Analysis and Risk Assessment of Acute Gastrointestinal Bleeding Using Multiagent Reinforcement Learning Algorithm,” Gastroenterology Research and Practice, 2022, pages 12. - Research and Practice, Gastroenterology (Gastroenterology Research & Practice, 2023)