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Handford HA, Mayes SD, Bixler EO, Mattison RE.Handford HA, et al. Among authors: mayes sd.J Dev Behav Pediatr. 1986 Aug;7(4):224-9. doi: 10.1097/00004703-198608000-00002.J Dev Behav Pediatr. 1986.PMID: 3745448