Garcia-Barceló, M Frequencies of defective CYP2C19 alleles in a Hong Kong Chinese population: detection of the rare allele CYP2C19*4. [electronic resource] - Clinical chemistry Dec 1999 - 2273-4 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0009-9147 Subjects--Topical Terms: AllelesAnticonvulsants--metabolismAryl Hydrocarbon HydroxylasesChina--ethnologyCytochrome P-450 CYP2C19Cytochrome P-450 Enzyme System--deficiencyGene FrequencyGenotypeHong KongHumansIsoenzymes--geneticsMephenytoin--metabolismMixed Function Oxygenases--deficiencyPhenotypePolymorphism, GeneticPrevalence