Hereditary angioedema (HAE) Brazilian registry: pediatric population - Grumach, Anete Sevciovic; Valle, S. R.; Pinto, Jorge Andrade; Roxo Junior, Persio; Vilela, Maria Marluce dos Santos; Mansour, E.; Ouricuri, A.; Campos, R. C.; Bensi, C.; Gennari, L.; Moises, T.; Toledo, E.; et al. (C1 Inhibitor Deficiency Workshop, 2011)