The frequency of cefoperazone was maximum in the first-select anti-infectious, next were levofloxacin, amikacin, and penicillin.

• 首选药物中头孢哌酮的频率最高,其次为左氧氟沙星、阿米卡星和青霉素。药物消耗量最大也是头孢哌酮。