“…14,16 -18,20,21 There were 6 studies that compared a single type of antibiotic with placebo or no treatment and 3 that compared 2 different antibiotics with control. 13,16,19 Of the studies 4 used penicillins, 14,17,19,20 3 used quinolone, 13,15,18 2 used a SMZϩTMP combination, 16,20 and 1 used cephalosporins, 13 nitrofurantoin, 16 aminoglycosides 19 or -lactam, 21 respectively. Our review of funnel plots excluded publication bias.…”