title: Mucoid character and ampicillin resistance in Escherichia coli.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology*; D004926:Escherichia coli / Q000187:drug effects* / Q000378:metabolism / Q000648:ultrastructure; D010403:Penicillin Resistance
chemical_list: D000667:Ampicillin