Epstein–Barr Virus (EBV) and Human Papilloma Virus (HPV) in Gastric Cancers, with Special Reference to Gastric Cancer at a Young Age—A Pilot Study in Poland. - Mazurek, Marek; Jaros, Małgorzata; Gliwa, Anna M.; Sitarz, Monika Z.; Dudzińska, Ewa; Zinkiewicz, Krzysztof; Sitarz, Robert (International Journal of Molecular Sciences, 2025)