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The symptoms of PA are the symptoms of the B12 deficiency that it causes
Several case studies have been published over the years in which vitamin B12 has helped patients with delayed sleep phase disorders
That's a meaningful body of circumstantial evidence, but it's not the same as clinical proof of efficacy in humans
Your healthcare provider can assess your condition and provide appropriate guidance or treatment
Purchasing from reputable, traceable sources isnt optional when the solution is going directly into the body.
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