Term Name:	spermatogenic failure 21
Synonyms:
Definition:	A male infertility due to acephalic spermatozoa that is characterized by acephalic spermatozoa, reduced sperm number and impaired sperm motility that has_material_basis_in homozygous mutation in the BRDT gene on chromosome 1p22.
Ontology:	Human Disease [DOID:0070163]   ( DOID:0070163 )