The Abnormal Haemoglobins in Homozygous α‐Thalassaemia

Summary The red cells from Chinese stillborn infants with erythroblastosis foetalis due to homozygous α‐thalassaemia contain about 80% Hb‐γ4, the second haemoglobin always present does not contain α‐chains and has the structure Hbγ2X2 identical to Hb‐Portland 1. Hb‐A, Hb‐F, or Hb‐A2 were not detected.