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High-Performance Liquid Chromatography (HPLC) measures purity, while Mass Spectrometry (MS) confirms molecular identity
Monti and colleagues in Uruguay ran a double-blind crossover of 25 nmol/kg over four nights and found that although several sleep measures moved in the expected direction, none differed significantly from baseline or placebo, and where differences did reach significance for NREM and stage 2 sleep, the same differences already existed at baseline
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