[1] Hacettepe Univ, Fac Med, Dept Microbiol & Clin Microbiol, TR-06100 Ankara, Turkey
[2] Ctr Infect Hlth Protect Agcy, Antibiot Resistance Monitoring & Reference Lab, London, England
[3] Erciyes Univ, Fac Med, Dept Infect & Clin Microbiol, Kayseri, Turkey
[4] Firat Univ, Fac Med, Dept Microbiol & Clin Microbiol, TR-23169 Elazig, Turkey
[5] Malatya State Hosp, Dept Microbiol & Clin Microbiol, Malatya, Turkey
[6] Yeditepe Univ, Fac Med, Dept Microbiol & Clin Microbiol, Istanbul, Turkey
[7] Hacettepe Univ, Fac Med, Dept Internal Med, Infect Dis Sect, TR-06100 Ankara, Turkey