Arrais M, Lulua O, Quifica F, Rosado-Pinto J, Gama J, Taborda-Barata L. Prevalence of asthma, allergic rhinitis and eczema in 6-7-year-old schoolchildren from Luanda, Angola. Allergol Immunopathol. 2019;47(6):523-534. Accessed September 10, 2025. https://all-imm.com/index.php/aei/article/view/265