From: CYP2D6 genotypes, endoxifen levels, and disease recurrence in 224 Filipino and Vietnamese women receiving adjuvant tamoxifen for operable breast cancer
Frequency (%)
Allele
Vietnamese
Filipino
*10
58.5
52.4
*1
24
30.0*
*2
11
12.4*
*5
5
2.4
*41
1
2.8
*4
0.5
0
*3
*6