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20 points
HAEMOGLOBINS is validvalid
HAEMOGLOBIN, [n]
HAEMOGLOBIN, the iron-containing pigment which is the oxygen-carrying substance present in the red blood cells of vertebrates, also HEMOGLOBIN [n]
HAEMOGLOBIN, [n]
HAEMOGLOBIN, the iron-containing pigment which is the oxygen-carrying substance present in the red blood cells of vertebrates, also HEMOGLOBIN [n]