Assertion: thalassemia's hemoglobin | /r/HasProperty | the substance
Facets:
Source sentences:
text: Thalassemia is caused by mutations in the DNA of cells that make hemoglobin — the substance in red blood cells that carries oxygen throughout your body.
text: Hemoglobin (Hb or Hgb) is a substance present in all red blood cells (RBCs).
text: Thalassemia is caused by mutations in the DNA of cells that make hemoglobin — the substance in red blood cells that carries oxygen throughout your body.