Managing costs in primary immunodeficiency: minimal immunophenotyping and three national references. - Dias, Ana Luisa Abrahão; Vilela, Maria Marluce dos Santos; Riccetto, Adriana Gut Lopes; da Silva, Raquel Gomes; Cunha, Fernanda Gonçalves Pereira; Lorand‐Metze, Irene; Morcillo, André Moreno (APMIS, 2019)