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Zackoff MW, Real FJ, Abramson EL, Li ST, Klein MD, Gusic ME.Zackoff MW, et al. Among authors: klein md.Acad Pediatr. 2019 Mar;19(2):135-141. doi: 10.1016/j.acap.2018.08.003. Epub 2018 Aug 20.Acad Pediatr. 2019.PMID: 30138745Review.
Baker RC, Klein M, Samaan Z, Lewis K.Baker RC, et al.Acad Pediatr. 2010 Mar-Apr;10(2):131-7. doi: 10.1016/j.acap.2009.12.004.Acad Pediatr. 2010.PMID: 20206912
Burkhardt MC, Beck AF, Conway PH, Kahn RS, Klein MD.Burkhardt MC, et al. Among authors: klein md.Pediatrics. 2012 Feb;129(2):e504-10. doi: 10.1542/peds.2011-1153. Epub 2012 Jan 16.Pediatrics. 2012.PMID: 22250022
Beck AF, Klein MD, Schaffzin JK, Tallent V, Gillam M, Kahn RS.Beck AF, et al. Among authors: klein md.Pediatrics. 2012 Nov;130(5):831-8. doi: 10.1542/peds.2012-0769. Epub 2012 Oct 22.Pediatrics. 2012.PMID: 23090340
Klein M, Niebuhr V, D'Alessandro D.Klein M, et al.Acad Pediatr. 2013 Nov-Dec;13(6):564-9. doi: 10.1016/j.acap.2013.07.005.Acad Pediatr. 2013.PMID: 24238683