Methods: We did a genome -
wide association study
of 297 P falciparum isolates from Cambodia to investigate the relationship
of 11 630 exonic single - nucleotide polymorphisms (SNPs) and 43 copy
number variations (CNVs) with in - vitro piperaquine 50 % inhibitory concentrations (IC
50 s), and tested whether these genetic
variants are markers
of treatment failure with dihydroartemisinin - piperaquine.