Roxadustat effectiveness versus ESAs in peritoneal dialysis patients during the COVID-19 pandemic: A retrospective study - Jie Liu; Kefan Zhou; Chen Meng; Zhuzhu Liu; Ruihua Huang; Yousuf Waheed; Fan Yang; Kun Liu; Jiaqi Zhao; Lin Zhang; Xiaoyan Yu; Shuang Li; et al. (PLoS ONE, 2025)