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Kamper-Jørgensen M, Wohlfahrt J, Simonsen J, Grønbaek M, Benn CS.Kamper-Jørgensen M, et al. Among authors: benn cs.Pediatrics. 2006 Oct;118(4):1439-46. doi: 10.1542/peds.2006-0373.Pediatrics. 2006.PMID: 17015534