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Vitamin K interference in the measurement of plasma ammonia

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  • Contributors MJA and RG-R conceived of the study. MJA, RG-R and PL initiated the study design and PF-C and PO helped with implementation. RG-R provided statistical expertise. All authors contributed to refinement of the study protocol and approved the final manuscript.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.