kromosoomi esinemisest tingitud sündroom, a condition characterized by neonatal hepatitis, mental retardation, scaphocephaly, or other skull abnormality, micrognathia, blepharoptosis, low-set ears, corneal opacities, deafness, webbed neck, sh, a congenital condition that is characterized especially by mental retardation and by craniofacial, cardiac, gastrointestinal, and genitourinary abnormalities, is caused by trisomy of the human chromos