Cardiometabolic index as a predictor of gallstone risk: evidence from NHANES 2017–2020. - Zheng, Huachao; Wu, Bo; Zhuang, Caixiang; Mao, Jiesheng; li, Min; Luo, Yuncheng; Huang, Lidong; Lin, Sisi; Zhao, Feiyang; Hu, Yiren (BMC Gastroenterology, 2025)