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Trends in the prevalence of pfcrt codon 76 and pfmdr1 codons 86, 184, 1034, 1042 and 1246 alleles prior to and after the change in treatment policy. The arrow indicates the period of anti-malarial drug policy change. (A)pfcrt 76, (B)pfmdr1 86, (C)pfmdr1 184, (D)pfmdr1 1034, (E)pfmdr1 1042 and (F)pfmdr1 1246.
