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. 2019 Sep 20;14:7743–7758. doi: 10.2147/IJN.S218944

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© 2019 Long et al.

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¹H NMR spectra (400 MHz, D₂O, 25ºC) of (A) sodium alginate, (B) the CSAD derivative, (C) the CSAD-VB₁₂ derivative, and (D) vitamin B₁₂ (a–c: the signal at δ 4.67 ppm for HDO was suppressed).