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Relative frequencies of mutations E44D/A, V118I, and H208Y with respect to zidovudine resistance mutations and mutations at position 184 (n = 307). ZDV MUT is defined as the presence of one of the following mutations: M41L, D67N, K70R, L210W, T215Y/F/C, or K219Q/E/R. 184 MUT is defined as the presence of M184V/I. WT wild type, MUT mutant.
