human 166 Article 155 female 96 antibiotic resistance 95 male 92 antibiotic agent 89 nonhuman 89 Humans 85 adult 83 controlled study 83 antiinfective agent 58 Antibiotics 52 major clinical study 49 Anti-Bacterial Agents 45 Female 42 antibiotic sensitivity 40 antibiotic therapy 38 middle aged 38 Male 36 aged 36 clinical article 35 Escherichia coli 34 retrospective study 33 unclassified drug 30 Adult 27 genetics 27 Staphylococcus aureus 26 gentamicin 26 bacterial strain 25 ciprofloxacin 25