title: In vitro antimicrobial activity of 6(D(-) -amino-p-hydroxyphenylacetamido) penicillanic acid, a new semisynthetic penicillin.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology; D004755:Enterobacteriaceae / Q000187:drug effects*; D005069:Evaluation Studies as Topic; D008826:Microbial Sensitivity Tests; D009344:Neisseria gonorrhoeae / Q000187:drug effects*; D010397:Penicillanic Acid / Q000494:pharmacology; D010406:Penicillins / Q000494:pharmacology*; D013210:Staphylococcus / Q000187:drug effects*; D013296:Streptococcus pneumoniae / Q000187:drug effects*; D013297:Streptococcus pyogenes / Q000187:drug effects*; D013844:Thiazoles / Q000494:pharmacology*
chemical_list: D010406:Penicillins; D013844:Thiazoles; D000667:Ampicillin; D010397:Penicillanic Acid