J. . Gomes Pucciarelli, E. . Watanabe, S. de Godoy, R. . Maciel Monteiro, P. Castania Amadio Domingues, and L. M. Marchi-Alves, “Stopper fragments in parenteral preparations: a potential problem”, Rev Prev Infec e Saúde, vol. 8, no. 1, Mar. 2022.