Comment to: II Brazilian Consensus on the use of human immunoglobulin in patients with primary immunodeficiencies - Goudouris, Ekaterini Simões; Silva, Almerinda Maria do Rego; Ouricuri, Aluce Loureiro; Grumach, Anete Sevciovic; Condino Neto, Antonio; Carvalho, Beatriz Tavares Costa; Prando, Carolina Cardoso de Mello; Kokron, Cristina Maria; Vasconcelos, Dewton de Moraes; Tavares, Fabíola Scancetti; Segundo, Gesmar Rodrigues Silva; Barreto, Irma Cecília Douglas Paes; et al. (Einstein, 2017)