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Neuropsychobiology 2003;47:94-7

Lets cut through the noise and look at what this shot actually does

And the answer has a bit of nuance

Levels of L-carnitine and L-O-acetylcarnitine in normal and infertile human semen: a lower level of L-O-acetycarnitine in infertile semen

To our best knowledge, this is the first systematic review to address these gaps by synthesizing evidence in CAD patients across mechanistic markers such as oxidative stress, inflammatory mediators, autophagy-related markers and post-PCI myocardial-injury biomarkers together with clinical endpoints such as ventricular arrythmia, mortality and angina