Haenni, Marisa Fitness cost and impaired survival in penicillin-resistant Streptococcus gordonii isolates selected in the laboratory. [electronic resource] - Antimicrobial agents and chemotherapy Jan 2008 - 337-9 p. digital Publication Type: Journal Article ISSN: 0066-4804 Standard No.: 10.1128/AAC.00939-07 doi Subjects--Topical Terms: Anti-Bacterial Agents--pharmacologyMicrobial Sensitivity TestsMutationPenicillin Resistance--geneticsPenicillins--pharmacologySelection, GeneticSerial PassageStreptococcus gordonii--drug effects