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Ascorbic acid is essential for normal collagen formation by virtue of the fact that it is a required component in the synthesis of hydroxyproline and hydroxylysine in collagen

Lipidomic analysis: CSF lipidome A previously validated method was used for lipid extraction 29

Thus, the presence of a heterochromatin ring or coat can be used to distinguish an nLD from an envelope-embedded cLD, even without immunostaining for the envelope

and as the stars faded away, and trees, and fields, and hills, and the quiet village arose from the gloom, and the sun's first rays burst over the eastern hills into the valley, lighting it up with sudden splendor, while the swelling chorus of birds and the hum of insects broke the stillness