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For intramuscular administration as directed by a physician

Area of deep mucosal necrosis (B, 4, H&E)

We evaluated the relationship between vitamin B 12 levels and liver disease severity and long term prognosis in patients with chronic viral hepatitis and cirrhosis

These tests measure serum B12 levels and may also assess levels of methylmalonic acid and homocysteine to gain a clearer picture

Pediatrics 122 , 8391 (2008)

According to the National Institutes of Health Office of Dietary Supplements, an estimated 6% of adults under 60 in the United States are B12 deficient, with the prevalence rising to nearly 20% in adults over 60