[1] Univ Hlth Sci, Gulhane Training & Res Hosp, Div Endocrinol & Metab, Dept Internal Med, TR-06010 Ankara, Turkey
[2] Hacettepe Univ, Div Endocrinol & Metab, Dept Internal Med, Fac Med, Ankara, Turkey
[3] Univ Hlth Sci, Dept Internal Med, Ankara, Turkey
[4] Univ Hlth Sci, Gulhane Fac Med, Dept Internal Med, Div Endocrinol & Metab, Ankara, Turkey
[5] Univ Hlth Sci, Kecioren Training & Res Hosp, Div Endocrinol & Metab, Dept Internal Med,Fac Med, Ankara, Turkey
[6] Minist Hlth, Dept Strategy Dev, Ankara, Turkey
[7] Ankara Univ, Div Endocrinol & Metab, Dept Internal Med, Fac Med, Ankara, Turkey
[8] Univ Hlth Sci, Diskapi Yildirim Beyazit Training & Res Hosp, Dept Internal Med, Div Endocrinol & Metab,Fac Med, Ankara, Turkey
[9] Minist Hlth, Publ Hosp Gen Directorate, Ankara, Turkey
[10] Ankara Prov Hlth Directorate, Ankara, Turkey
[11] Dokuz Eylul Univ, Div Endocrinol & Metab, Dept Internal Med, Fac Med, Izmir, Turkey
[12] Ondokuz Mayis Univ, Div Endocrinol & Metab, Dept Internal Med, Fac Med, Samsun, Turkey
[13] Medica Clin, Endocrinol & Metab, Istanbul, Turkey
[14] Istanbul Univ, Div Endocrinol & Metab, Dept Internal Med, Fac Med, Istanbul, Turkey
[15] Inonu Univ, Dept Internal Med, Div Endocrinol & Metab, Fac Med, Malatya, Turkey