title: A semiautomated method for the rapid determination of dopa: comparison of plasma and erythrocyte-dopa concentration in levodopa-treated patients.
mesh_terms: D001322:Autoanalysis / Q000379:methods; D004295:Dihydroxyphenylalanine / Q000097:blood*; D004912:Erythrocytes / Q000378:metabolism*; D006801:Humans; D007980:Levodopa / Q000627:therapeutic use*; D008781:Methyltyrosines / Q000097:blood; D010300:Parkinson Disease / Q000188:drug therapy; D013050:Spectrometry, Fluorescence; D014443:Tyrosine / Q000031:analogs & derivatives*
chemical_list: D008781:Methyltyrosines; D014443:Tyrosine; D007980:Levodopa; D004295:Dihydroxyphenylalanine; C008404:3-methoxytyrosine