TY - GEN AU - Chase,T N AU - Ng,L K AU - Watanabe,A M TI - Parkinson's disease. Modification by 5-hydroxytryptophan SN - 0028-3878 PY - 1973///0105 KW - 5-Hydroxytryptophan KW - therapeutic use KW - Adult KW - Aged KW - Brain KW - metabolism KW - Carboxy-Lyases KW - antagonists & inhibitors KW - Clinical Trials as Topic KW - Drug Synergism KW - Evaluation Studies as Topic KW - Extrapyramidal Tracts KW - drug effects KW - Female KW - Humans KW - Hydrazines KW - Hydroxyindoleacetic Acid KW - cerebrospinal fluid KW - Male KW - Methyldopa KW - Middle Aged KW - Parkinson Disease KW - Phenylacetates KW - Placebos KW - Serotonin N1 - Publication Type: Clinical Trial; Controlled Clinical Trial; Journal Article UR - https://doi.org/10.1212/wnl.22.5.479 ER -