| Namespace | disease_ontology | Obsolete | false |
| description | An oocyte/zygote/embryo maturation arrest that is characterized by primary infertility due to defective sperm-binding to an abnormally thin zona pellucida (ZP) in patient oocytes and that has_material_basis_in homozygous mutation in the ZP2 gene on chromosome 16p12.3-p12.2. |