Concomitant use of H1 antihistamines improves survival outcomes in cancer patients on immune checkpoint inhibitor therapy: a systematic review and meta-analysis - Moraes, Francisco Cezar Aquino de; Wagner, Pedro Henrique de Souza; Hirata, Rosario Dominguez Crespo; Burbano, Rommel Mário Rodriguez; Hirata, Mario Hiroyuki (Expert Review of Anticancer Therapy, 2026)