Underreporting of transfusion incidents Josiane Garcia; Anna Cecília Dias Maciel Carneiro; Sheila Soares Silva; Karla Fabiana Nunes da Silva; Joilson Meneguci; Helio Moraes-Souza;

Investigation of haematological, inflammatory parameters and the incidence of alloimmunization in multi-transfused sickle cell diseased patients Florence Ifechukwude Aboderin; Taofeeq Oduola; Glenda Mary Davison; Oluwafemi Omoniyi Oguntibeju;

Outcomes and vaccination patterns against COVID-19 in a cohort of sickle cell disease patients in the state of Rio de Janeiro Claudia de Alvarenga Maximo; Jorge Francisco da Cunha Pinto; Fabiana Canedo Pinto; Patrícia Brasil;