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Hemoglobin A2 (HbA2): normal range and beta-thal trait
HbA2 is a minor adult hemoglobin. Here's the normal range, why above 3.5% points to beta-thalassemia trait, and what else can push it up or down.
hemoglobin A2thalassemiahemoglobin electrophoresislab resultsbiomarker guides
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