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Phenotypic sensitivities to NRTIs of 40 HIV-1 variants with an RT rearrangement. Phenotypic results are expressed for each drug as percentages of variants divided into three groups: RVA of <4, phenotypic sensitivity; RVA of >4 and <10, low-level resistance; RVA of >10, high-level resistance. ZDV, zidovudine.
