L. A. Siqueira, L. S. Anjos, T. P. do Nascimento, V. B. Ronsoni, M. R. Nunes, and B. C. de Araújo, “Evaluation of the presence of microorganisms isolated from the surface of the stethoscope diaphragm used by UNIPAM medicine course students”, Rev. Med. (São Paulo), vol. 99, no. 3, pp. 242–245, Jun. 2020, doi: 10.11606/issn.1679-9836.v99i3p242-245.