# 3 | 578 | #2 AND #1 Databases=CM, LS Timespan=All Years Lemmatization=On |
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# 2 | 528,401 | Topic=(random* or placebo* or crossover* or "cross over" or allocat* or ((doubl* or singl*) NEAR/1 blind*)) OR Title=(trial) Databases=CM, LS Timespan=All Years Lemmatization=On |
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# 1 | 2,624 | Topic=(otitis or "glue ear" or ("middle ear" NEAR/3 (infect* or inflam*)) or ome or aom) AND Topic=(antibiotic* or antibacterial* or antiinfective* or ampicillin* or cephalosporin* or macrolide* or amoxicillin* or amoxycillin* or penicillin* or cefdinir* or cefpodoxime* or cefuroxime* or azithromycin* or clarithromycin* or erythromycin*) Databases=CM, LS Timespan=All Years Lemmatization=On |