title: Antimicrobial susceptibility testing of pneumococci. 2. Determination of optimal disc diffusion test for detection of penicillin G resistance.
mesh_terms: D004058:Diffusion; D008826:Microbial Sensitivity Tests / Q000379:methods; D010400:Penicillin G / Q000494:pharmacology*; D010403:Penicillin Resistance; D010406:Penicillins / Q000494:pharmacology; D013296:Streptococcus pneumoniae / Q000187:drug effects*
chemical_list: D010406:Penicillins; D010400:Penicillin G