| Namespace | disease_ontology | Obsolete | false |
| description | A spermatogenic failure characterized by sperm with insufficient individualization, excessive residual cytoplasm, acrosome defects, and abnormalities of the head and flagella, resulting in significantly reduced sperm concentration and progressive motility, that has_material_basis_in hemizygous mutation in the CT55 gene on chromosome Xq26.3. |
