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Hesseling AC, Schaaf HS, Victor T, Beyers N, Marais BJ, Cotton MF, Wiid I, Gie RP, van Helden P, Warren RM.Hesseling AC, et al.Pediatr Infect Dis J. 2004 May;23(5):476-9. doi: 10.1097/01.inf.0000126593.21006.ac.Pediatr Infect Dis J. 2004.PMID: 15131480