title: A 2-year-old male with developmental delay, irritability, and failure to thrive.
authors: Department of Neurology, Children's National Medical Center, Washington, DC, USA.
authors: David T
authors: DT
authors: Hsieh
authors: Andrea L
authors: AL
authors: Gropman
authors: Phillip L
authors: PL
authors: Pearl
mesh_terms: D002675:Child, Preschool; D002658:Developmental Disabilities / Q000209:etiology; D005183:Failure to Thrive / Q000209:etiology; D006801:Humans; D007926:Lesch-Nyhan Syndrome / Q000150:complications / Q000175:diagnosis* / Q000652:urine*; D008297:Male; D009123:Muscle Hypotonia / Q000209:etiology; D014527:Uric Acid / Q000097:blood / Q000652:urine*
chemical_list: D014527:Uric Acid