Gut microbiota community and metabolic profiles in direct total cavopulmonary connection and Fontan circulation: a cross-sectional study in the single center - Wang, Kaiyu; Han, Linjiang; Ma, Jianrui; Fang, Yushen; He, Yinru; Liu, Xiaobing; Wen, Shusheng; Zhuang, Jian; Yuan, Haiyun (Frontiers in Microbiology, 2025)