title: [Effect of cephalexin on respiratory tract infection].
mesh_terms: D000328:Adult; D002511:Cephalosporins / Q000494:pharmacology / Q000627:therapeutic use*; D004926:Escherichia coli / Q000187:drug effects; D005260:Female; D006801:Humans; D008297:Male; D008826:Microbial Sensitivity Tests; D008875:Middle Aged; D011859:Radiography; D012141:Respiratory Tract Infections / Q000000981:diagnostic imaging / Q000188:drug therapy*; D013210:Staphylococcus / Q000187:drug effects; D013290:Streptococcal Infections / Q000188:drug therapy; D013291:Streptococcus / Q000187:drug effects
chemical_list: D002511:Cephalosporins