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Vitamin C concentrations in human and rat tissues and fluids from https://www.ncbi.nlm.nih.gov/pubmed/26808119

Vitamin C: the known and the unknown and Goldilocks. Padayatty &amp; Levine (2016). Citation: Oral Dis. 2016 Sep;22(6):463-93. doi: 10.1111/odi.12446. Epub 2016 Apr 14.

License: Public domain