Assertion: thalassemia's hemoglobin | /r/CapableOf | comprise 2-3.5% of hemoglobin
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Source sentences:
text: Two minor hemoglobins also occur: hemoglobin A 2 , composed of two alpha and two delta globins (α2 δ2) comprises 2-3.5% of hemoglobin, while hemoglobin F, composed of two alpha and two gamma globins (α2 γ2) comprises less than 2% of hemoglobin.