1 Immunoallergy Service, Dona Estefânia Hospital, Centro Hospitalar de Lisboa Central
2 Immunoallergy Department, Santa Maria Hospital, Centro Hospitalar de Lisboa Norte
3 Paediatric Department, Dona Estefânia Hospital, Centro Hospitalar de Lisboa Central
Letter to Editor
Allergol Immunopathol (Madr). 2013;41:68-9
doi:10.1016/j.aller.2011.12.004