A. M. Ferreira, D. de Andrade, M. T. G. de Almeida, K. C. Cunha, and M. A. Rigotti, “Egg crater mattresses: a deposit of methicillin-resistant staphylococcus aureus?”, Rev. Esc. Enferm. USP, vol. 45, no. 1, pp. 161–166, Mar. 2011, doi: 10.1590/S0080-62342011000100022.