title: [Effect of benzylpenicillin presence in polysynthetic penicillins on the result of the determination of their biological activity].
mesh_terms: D000667:Ampicillin / Q000494:pharmacology*; D003864:Depression, Chemical; D004340:Drug Contamination; D004357:Drug Synergism; D005779:Immunodiffusion; D008712:Methicillin / Q000494:pharmacology*; D010068:Oxacillin / Q000494:pharmacology*; D010400:Penicillin G / Q000008:administration & dosage / Q000494:pharmacology*; D013210:Staphylococcus / Q000187:drug effects*; D013268:Stimulation, Chemical
chemical_list: D000667:Ampicillin; D010400:Penicillin G; D008712:Methicillin; D010068:Oxacillin
vernacular_title: Vliianie prisutstviia benzilpenitsillina v polsinteticheskikh penitsillinakh na rezul'tat opredeleniia ikh biologicheskoĭ aktivnosti.