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Datasets that included a group demonstrating zero variance between samples were analyzed non-parametrically
Only one of these four, methionine, is an amino acid
[141] Although there have been sporadic synthetic efforts since 1972, [140] the EschenmoserWoodward synthesis remains the only completed (formal) total synthesis
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There are also cases where patients with low B12 levels have problems with fertility or are more likely to develop dementia
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