3Ovalle A, Martinez MA, Wolff M, et al. Prospective, randomized, comparative study of the efficacy, safety and cost of cefuroxime versus cephradine in acute infection[J]. Rev Med Chil, 2000,128 (7) : 749.
4Mohammad M, Mahdy ZA, Omar J, et al. Laboratory aspects of asymptomatie bacteriuria after operation[J]. Southeast Asian J Trop Med Public Health, 2002, 33 (3) : 575.