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Burton line in the lower gum

Burton line indicated by black arrow. (Source: Yang Y, Li S, Wang H, et al. Chronic lead poisoning induced abdominal pain and anemia: a case report and review of the literature. BMC Gastroenterol 2020;20[1]:335. Creative Commons Attribution 4.0 International License, http://creativecommons.org/licenses/by/4.0.)

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  • Iron deficiency anemia
  • Language disorder
  • Learning disabilities
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  • Pica