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33,34,35,36,37 One study suggests that length of time from diagnosis of cognitive impairment is important for response rate, in that patients who had experienced symptoms for less than 12 months improved on B12, whilst those with symptoms for more than 12 months continued to decline
A 22-minute elution gradient was implemented: at 0 and 1 minutes, 0.5% B
Research suggests glutathione levels may be depleted in Parkinson's disease, prompting investigation into supplementation as a potential supportive intervention
Psychiatry 58 , 879884 (2005)
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