Community pharmacies 2 Sana’a City Self-medication 2 female 2 human 2 male 2 prevalence 2 questionnaire 2 risk factor 2 self medication 2 Antibiotics 1 Article 1 Khat 1 Risk factors 1 Yemen 1 adult 1 antibiotic agent 1 antibiotic resistance 1 chi square test 1 cold 1 consumer 1 controlled study 1 cost of illness 1 coughing 1 cross-sectional study 1 death 1 diarrhea 1 education 1 employment 1 fever 1