Influence of HLA Class I and II Polymorphisms on COVID-19 Severity in a South Brazilian Population. - Grava S; Braga M; Souza VH; Pepineli AC; Yamanaka AHU; Ayo CM; Zacarias JMV; Simão ANC; Pinto LDB; Neto QAL; Visentainer JEL (International journal of molecular sciences, 2025)