Almeida, Elsa, et al. “Sensitization to Grass Allergens: Phl p1, Phl P5 and Phl P7 Phl p12 in Adult and Children Patients in Beja (Southern Portugal)”. Allergologia Et Immunopathologia, vol. 47, no. 6, Dec. 2019, pp. 579-84, https://www.all-imm.com/index.php/aei/article/view/273.