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Ladhani SN, Ramsay M, Slack MP.Ladhani SN, et al. Among authors: slack mp.Pediatr Infect Dis J. 2011 Oct;30(10):893-5. doi: 10.1097/INF.0b013e31822ef670.Pediatr Infect Dis J. 2011.PMID: 21866072