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Kumar Surendra A tingling sensation on the fingertips, tiredness, weakness, and dizziness are more than just stress, they could be signs of a deficiency you may be overlooking
Nov 2016;37(11):933-944
Global initiative for chronic Obstructive Lung Disease (GOLD)
Long-term use: Clinical trials only ran 12 weeks, so long-term safety data (6+ months continuous use) comes from anecdotal reports
Cochrane Database of Systematic Reviews
"The Nobel Prize and the discovery of vitamins"
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