. . "Disease or Syndrome"^^ . "A rare, autosomal recessive inherited syndrome characterized by brittle hair, mental and physical retardation, and decreased fertility.NCI" . "C0740342"^^ . "Trichothiodystrophy"^^ . "Trichothiodystrophy SyndromeSYNCI" . "TrichothiodystrophyPTNCI" . . "A hereditary condition characterized by sparse and brittle hair, short stature, and mental retardation.NCI-GLOSS" . . "Trichothiodystrophy"^^ . . "trichothiodystrophyPTNCI-GLOSSCDR0000046692" . "Trichothiodystrophy"^^ . "C4924"^^ .