Methods:
The PubMed and PharmGKB databases were searched for the following keywords: (CYP2C9 OR cytochrome p450 2c9)AND [genomic identifiers (e.g. dbSNP rs number, star alleles, additional common names)] AND English [Language]. Study inclusion criteria included publications that incorporated analyses for the association between CYP2C9 genotype and drug pharmacokinetic parameters, clinical outcomes, or allele function.