Novel Expansions of the Gene Encoding Dihydropteroate Synthase in Trimethoprim-Sulfamethoxazole-Resistant Streptococcus pneumoniae

 Volume 43, no. 9, p. 2225–2230, 1999. Duplication of Arg₅₈ and Pro₅₉ was incorrectly described as a novel mutation. The mutation was in fact first reported by J. P. Maskell, A. M. Sefton, and L. M. C. Hall, Antimicrob. Agents Chemother. 41:2121–2126, 1997.