Term Name:	nonphotosensitive trichothiodystrophy 9
Synonyms:	TTD9
Definition:	A nonphotosensitive trichothiodystrophy that is characterized by brittle hair and nails and scaly skin, accompanied by failure to thrive, microcephaly, and neuromotor developmental delay that has_material_basis_in homozygous mutation in the MARS1 gene on chromosome 12q13.
Ontology:	Human Disease [DOID:0061024]   ( DOID:0061024 )