Efficacy and safety of first-line immunotherapy-containing regimens compared with chemotherapy for advanced or metastatic urothelial carcinoma: a network meta-analysis of randomized controlled trials - Liang, Weiming; Huang, Shibo; Huang, Yanping; Huang, Miaoyan; Li, Chunyan; Liang, Yiwen; Pang, Li (Frontiers in Oncology, 2024)