[1] Ege Univ, TR-35100 Izmir, Turkey
[2] Celal Bayar Univ, Manisa, Turkey
[3] Ataturk Training & Res Hosp, Izmir, Turkey
[4] Numune Hosp, Adana, Turkey
[5] Ankara Univ, TR-06100 Ankara, Turkey
[6] Ataturk Univ, Erzurum, Turkey
[7] Pamukkale Univ, Denizli, Turkey
[8] Trakya Univ, Edirne, Turkey
[9] Cumhuriyet Univ, Sivas, Turkey
[10] Erasmus MC, Div Epidemiol, Rotterdam, Netherlands
[11] Rize Univ, Rize, Turkey
[12] Istanbul Univ, Istanbul, Turkey
[13] Dicle Univ, Diyarbakir, Turkey