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Alpern AN, Gardner M, Kogan B, Sandberg DE, Quittner AL.Alpern AN, et al. Among authors: quittner al.J Pediatr Psychol. 2017 Jun 1;42(5):544-558. doi: 10.1093/jpepsy/jsw022.J Pediatr Psychol. 2017.PMID: 27026663Free PMC article.