Updating recommendations of the Brazilian Group of Flow Cytometry (GBCFLUX) for diagnosis of acute leukemias using four-color flow cytometry panels Míriam P. Beltrame; Elizabeth Xisto Souto; Mihoko Yamamoto; Felipe M Furtado; Elaine Sobral da Costa; Alex Freire Sandes; Glicínia Pimenta; Geraldo Barroso Cavalcanti Júnior; Maria Cláudia Santos-Silva; Irene Lorand-Metze; Maura R V Ikoma-Colturato;