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. 2021 Jul 2;4(2):374–384. doi: 10.1136/bmjnph-2020-000202

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© Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

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Number of metabolites that can be assessed by each protocol and in total by chemical class for the LC-MS (A) and FIA analysis (B) separately (dashed lines indicate those below the limit of detection).