Camacho, Irene, Elsa Caeiro, Carlos Nunes, and Mário Morais-Almeida. 2020. “Airborne Pollen Calendar of Portugal: A 15-Year Survey (2002-2017)”. Allergologia Et Immunopathologia 48 (2): 194-201. https://all-imm.com/index.php/aei/article/view/232.