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The average 7-12 year delay from symptom onset to diagnosis reflects systemic failures in medical education, clinical assessment, and healthcare system organization rather than inherent limitations of medical knowledge or technology

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Vitamin B12 plays a fundamental role in red blood cell formation, neurological function, and DNA synthesis

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doi: 10.1023/A:1010255230338

It represents a reasonable first-line medical intervention for many men with secondary hypogonadism