title: Microtiter plate assay for biopterin using cryopreserved Crithidia fasciculata.
authors.affiliation: Clinical Chemistry Department, Birmingham Children's Hospital, United Kingdom.
authors.forename: R J
authors.initials: RJ
authors.lastname: Leeming
mesh_terms: D000818:Animals; D001681:Biological Assay / Q000379:methods*; D001708:Biopterins / Q000031:analogs & derivatives* / Q000032:analysis* / Q000096:biosynthesis / Q000097:blood; D016831:Crithidia fasciculata / Q000254:growth & development*; D003451:Cryoprotective Agents; D006801:Humans; D015394:Molecular Structure; D010649:Phenylalanine / Q000097:blood; D010661:Phenylketonurias / Q000378:metabolism; D012016:Reference Values; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D003451:Cryoprotective Agents; D001708:Biopterins; D010649:Phenylalanine; C003402:sapropterin