# 3	578	#2 AND #1 Databases=CM, LS Timespan=All Years Lemmatization=On
# 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
# 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