Littrow projection is the only conformal retroazimuthal projection.

In the case of Mixolydian harmonia, the framework chord is ¹⁄₁, ¹⁴⁄₁₁, ¹⁴⁄₁₀, and ²⁄₁.[…]while the various diatonic harmoniai are modes of each other, this is not true of the other two genera, which are uniquely derived from their corresponding diatonic forms.

Thus, the intracellular pteroyl polyglutamates are deconjugated to their respective monoglutamates after cellular degradation, which eventually leads to an artifactual increase of the measured plasma folate level.

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