[1]
R. Laviña Risso, H. Maglione, C. Domínguez, J. L. Badano, A. Valenzuela, and M. Albo, “Conduct to be followed in case of ingestion of foreing bodies: our experience”, Cir. Urug., vol. 50, no. 2, pp. 103–106, Mar. 1980.