title: Haemophilus influenzae, ampicillin sensitivity, and inoculum size.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology*; D000818:Animals; D006193:Haemophilus influenzae / Q000187:drug effects*; D051379:Mice; D010403:Penicillin Resistance; D013104:Spheroplasts / Q000187:drug effects*
chemical_list: D000667:Ampicillin