TY - JOUR T1 - GTP cyclohydrolase deficiency; intrafamilial variation in clinical phenotype, including levodopa responsiveness. JO - J Neurol Neurosurg Psychiatry PY - 1999/01/01 AU - Robinson R AU - McCarthy GT AU - Bandmann O AU - Dobbie M AU - Surtees R AU - Wood NW ED - DO - DOI: 10.1136/jnnp.66.1.86 VL - 66 IS - 1 SP - 86 EP - 89 Y2 - 2024/12/22 ER -