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. 2018 Mar 13;2018:9834181. doi: 10.1155/2018/9834181

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Copyright © 2018 Eugène H. J. M. Jansen and Piet K. Beekhof.

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Correlation between the mean vitamin B₁₂ concentrations at t=0 and after storage for 1, 8, and 13 years at −70°C. The correlation lines have the following equations: y = 0.829x + 2.80 , y = 0.600x + 33.7 , and y = 0.401x + 48.5 for 1, 8, and 13 years, respectively.

Inline graphic — Correlation between the mean vitamin B₁₂ concentrations at t=0 and after storage for 1, 8, and 13 years at −70°C. The correlation lines have the following equations: y = 0.829x + 2.80 , y = 0.600x + 33.7 , and y = 0.401x + 48.5 for 1, 8, and 13 years, respectively.