It should be noted that in some of the reported studies, comparing is performed between alpha-beta thalassemia with normal cases or in more than two groups but our emphasis was comparison between beta thalassemia carriers with alpha-
beta thalassemia carriers in hematology indices so increasing amounts occur in very small scales (8,45).
The rare alpha-thalassemia-1 of blacks is a zeta alpha-thalassemia-1 associated with deletion of all alpha-
and zeta-globin genes.
It also could change treatment programs, perhaps by incorporating the monitoring of a patient's ratio of alpha-
to beta-receptor stimulation or by developing medications that act on receptor sites.