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→How to define PGx alleles
*Patients may have a large, ambiguous number of matching PGx alleles
*Patients may have additional variants that may modify the effect of a known PGx allele
We can illustrate all the possible PGx allele definitions for a four loci PGx haplotype as
==The SNP array method==
This definition only requires matches for variants explicitly included in PGx allele definitions. This means that