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. 2016 May 20;5(1):668. doi: 10.1186/s40064-016-2252-z

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© The Author(s). 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 7 — Gradual failure of enterohepatic recycling. Total B₁₂, serum total vitamin B₁₂ concentration; HoloTC, serum holotranscobalamin concentration; MMA, plasma methylmalonic acid concentration; tHcy, plasma total homocysteine concentration