Erythrocytosis due to a combination of the high oxygen affinity hemoglobin variant, Hb Olympia [beta20(B2)Val-->Met] with beta- and alpha-thalassemia mutations: first case in the literature.

Erythrocytosis due to a combination of the high oxygen affinity hemoglobin variant, Hb Olympia [beta20(B2)Val-->Met] with beta- and alpha-thalassemia mutations: first case in the literature.