Bacurau AG de M, Francisco PMSB. Reasons for non-vaccination against influenza among older adults with hypertension in Brazil: a cross-sectional study. Sao Paulo Med J [Internet]. 2020 Aug. 6 [cited 2025 Oct. 17];138(4):322-5. Available from: https://periodicosapm.emnuvens.com.br/spmj/article/view/662