81,180
Participants
Start Date
February 1, 2019
Primary Completion Date
January 1, 2024
Study Completion Date
January 1, 2024
vitamin D 25(OH)D
Thyroid functions (thyroid-stimulating hormone (TSH), serbest triiodothyronine (fT3), serbest thyroxine (fT4)); Thyroid antibodies (Anti-thyroid peroxidase (anti-TPO), anti-thyroglobulin (anti-TG))
Ankara Bilkent City Hospital, Ankara
Ankara City Hospital Bilkent
OTHER
Ankara Yildirim Beyazıt University
OTHER