Table 1 Classification of antimicrobials used in this study

First-line penicillins

Amoxicillin, phenoxymethylpenicillin

Second-line penicillins

Amoxicillin and enzyme inhibitor

First-generation macrolide

Erythromycin

Second-generation macrolide

Azithromycin, clarithromycin,

Cephalosporin

Cefalexin

Others

Ciprofloxacin, clindamycin, pivmecillinam, Trimethoprim/sulfmethoxazole,