Vitamin B12 System Internationale Reference Intervals (All Ages) (methodology): Black (African-American) Female Reference Interval Black (African-American) Male Reference Interval Hispanic (Mexican-American) Female Reference Interval Hispanic (Mexican-American) Male Reference Interval White Female Reference Interval White Male Reference Interval
Vitamin B12 US Conversion Reference Intervals (All Ages) (methodology): Black (African-American) Female Reference Interval Black (African-American) Male Reference Interval Hispanic (Mexican-American) Female Reference Interval Hispanic (Mexican-American) Male Reference Interval White Female Reference Interval White Male Reference Interval
