1 Portuguese Association of Asthmatics (APA), Portugal; Allergy Center, CUF Descobertas and CUF Infante Santo Hospital, Lisbon, Portugal. Electronic address: mmoraisalmeida@netcabo.pt.
2 Portuguese Association of Asthmatics (APA), Portugal; Allergy Center, CUF Descobertas and CUF Infante Santo Hospital, Lisbon, Portugal; CEDOC, Chronic Diseases Research Center, NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal.
3 Portuguese Association of Asthmatics (APA), Portugal; Allergy Center, CUF Descobertas and CUF Infante Santo Hospital, Lisbon, Portugal.
4 Portuguese Association of Asthmatics (APA), Portugal; Allergy Unit, CUF Porto Hospital and Instituto CUF, Porto, Portugal.
5 Portuguese Association of Asthmatics (APA), Portugal; Algarve Allergy Center, Portimão, Portugal.