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The distribution and frequencies of GSTM1 polymorphism in Malay students
| Genotype | Total no. of students | Genotype frequency |
|---|---|---|
| Wild type A/A or A/0 | 2 | 0.01 |
| Heterozygous A/B | 8 | 0.06 |
| Homozygous mutant B/B or B/0 | 36 | 0.27 |
| Null 0/0 | 91 | 0.66 |
| Total | 137 | 1.00 |
