1 Department of Internal Medicine, Hospital Garcia de Orta, Almada, Portugal. Electronic address: aluisabroa@gmail.com.
2 Clinical Immunology Unit, Centro Hospitalar do Porto, Oporto, Portugal; Unit for Multidisciplinary Research in Biomedicine, Instituto de Ciências Biomédicas Abel Salazar, Porto University, Oporto, Portugal.
3 Department of Internal Medicine, Hospital Garcia de Orta, Almada, Portugal.