alpha thalassemia, haemoglobin H typealpha thalassemia, hemoglobin H typehemoglobin H disease, deletionalalpha-thalassemia intermediaHBHhaemoglobin H diseasehaemoglobin H disease, deletional
obo:hasOBONamespace
disease_ontology
n2:IAO_0000115
An alpha thalassemia that has_material_basis_in contiguous gene deletion of the hemoglobin alpha-1 (HBA1) and alpha-2 (HBA2) genes on one chromosome 16, and a defect, deletional or nondeletional, in either HBA1 or HBA2 on the other.