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Koopman LP, Smit HA, Heijnen ML, Wijga A, van Strien RT, Kerkhof M, Gerritsen J, Brunekreef B, de Jongste JC, Neijens HJ.Koopman LP, et al. Among authors: brunekreef b.Pediatrics. 2001 Oct;108(4):943-8. doi: 10.1542/peds.108.4.943.Pediatrics. 2001.PMID: 11581448