The purpose of this study is to investigate the relationship between the side
effects(especially arthralgia and arthritis) which appear in the patients who are prescribed
aromatase inhibitor(AI) and the CYP19 genetic polymorphisms.
Who is eligible to participate?
Which medical condition, disease, disorder, syndrome, illness, or injury is researched?
Interventions can include giving participants drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available or noninvasive approaches such as surveys, education, and interviews.