THE DISTRIBUTION OF MUTATIONAL SITES AFFECTING RESISTANCE TO AMETHOPTERIN IN DIPLOCOCCUS PNEUMONIAE.
D004247:DNA; D004269:DNA, Bacterial; D004352:Drug Resistance, Microbial; D005823:Genetics; D008727:Methotrexate; D009154:Mutation; D012106:Research; D013296:Streptococcus pneumoniae
D004269:DNA, Bacterial; D004247:DNA; D008727:Methotrexate
DIPLOCOCCUS PNEUMONIAE; DNA, BACTERIAL; DRUG RESISTANCE, MICROBIAL; EXPERIMENTAL LAB STUDY; GENETICS; METHOTREXATE