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Pérez-Schael I, Salinas B, González R, Salas H, Ludert JE, Escalona M, Alcalá A, Rosas MA, Materán M.Pérez-Schael I, et al.Pediatr Infect Dis J. 2007 May;26(5):393-7. doi: 10.1097/01.inf.0000260252.48129.86.Pediatr Infect Dis J. 2007.PMID: 17468648