we found that patients with the combination of non-deletion alpha ( + ) -thalassaemia [ ( alpha alpha ) th ] and deletion alpha ( 0 ) -thalassaemia ( -med ) have a more severe phenotype than that resulting from the interaction of deletion alpha ( 0 ) -thalassaemia ( -med ) and alpha ( + ) -thalassaemia ( -alpha ) determinants .
C0039730
thalassaemia
C0002312
alpha