Frequencies of genetic variants of the Rh, Kell, Duffy, Kidd, MNS and Diego systems of northwest Rio Grande do Sul, Brazil Scheila da Silva Soares; Josiane Rodrigues Aquino; Francini Petrolli; Tiago Bittencourt de Oliveira; Silvana Almeida; Marilu Fiegenbaum;

Association between FY*02N.01 and the severity of COVID-19: initial observations Marina C.A.V. Conrado; Marcia R. Dezan; Valéria Brito Oliveira; Karen Chinoca Ziza; Tila Fanciscani; Vanderson Rocha; Alfredo Mendrone-Júnior; Carla Luana Dinardo;