- Mutations in the dihydropteroate synthase gene of human-derived Pneumocystis carinii isolates from Italy are infrequent but correlate with prior sulfa prophylaxis. Ma, L., Kovacs, J.A., Cargnel, A., Valerio, A., Fantoni, G., Atzori, C. J. Infect. Dis. (2002)
- Genetic analysis of multiple loci suggests that mutations in the Pneumocystis carinii f. sp. hominis dihydropteroate synthase gene arose independently in multiple strains. Ma, L., Kovacs, J.A. Antimicrob. Agents Chemother. (2001)
- Genetic divergence of the dihydrofolate reductase and dihydropteroate synthase genes in Pneumocystis carinii from 7 different host species. Ma, L., Imamichi, H., Sukura, A., Kovacs, J.A. J. Infect. Dis. (2001)