Becker P, Razzouk D. Direct healthcare costs and their relationships with age at start of drug use and current pattern of use: a cross-sectional study. Sao Paulo Med J [Internet]. 2021 Feb. 15 [cited 2025 Mar. 14];139(1):18-29. Available from: https://periodicosapm.emnuvens.com.br/spmj/article/view/384