For patients diagnosed with a vitamin B12 deficiencyespecially when caused by problems with absorption in the digestive tract (such as pernicious anemia, certain gastrointestinal conditions, or after specific surgeries)oral supplements may not be effective
In UK primary care, patients with a B12 above 1,000 pmol/L had a one-year cancer incidence rate ratio of 4.72 compared with those in the reference range
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AHA Coding Clinic (Recent Guidance) The AHA Coding Clinic for ICD-10-CM/PCS provides authoritative guidance on complex coding scenarios
Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht von Graefes Archiv fr Klinische und Experimentelle Ophthalmologie
The chicken and egg question is - which came first - the iron deficiency anaemia or the P.A - or are the two irretrievably connected