S. G. da Silva, A. D. Bertoldi, M. F. da Silveira, M. R. Domingues, K. R. Evenson, and I. S. dos Santos, “Assisted reproductive technology: prevalence and associated factors in Southern Brazil”, Rev. saúde pública, vol. 53, p. 13, Jan. 2019, doi: 10.11606/S1518-8787.2019053000737.