“…Some studies [11,12,15,16,24,26,27,28,29] had additional criteria such as respondents' understanding of local languages, familiarity with the term "antibiotics" or whether they had lived in households or the geographical area for a certain period. Almost all studies (21 studies) described specific administration methods [1,4,6,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,28,29]. Nine out of twenty-one applied only randomized sampling techniques with face-to-face interviews using a structured interview questionnaire [4,6,11,13,18,20,21,28,29].…”