Successful Treatment of Persistent and Relapsing COVID-19 with Ensitrelvir in a Patient with Obinutuzumab-Induced Long-Term B-Cell Depletion: A Case Report. - Haino, Yoshitaka; Kenzaka, Tsuneaki; Hayashi, Tomohiro; Yakushijin, Kimikazu (Reports (MDPI AG), 2026)