JOURNAL OF MEDICAL BIOCHEMISTRY, cilt.38, sa.2, ss.181-187, 2019 (SCI İndekslerine Giren Dergi)
Background: Vitamin D regulates calcium and phosphorus metabolism, and it is essential for bone formation. Several factors can affect vitamin D levels in plasma. In present study we compare vitamin D levels of outpatients, who admit to Maltepe University Hospital between 2011 and 2013 and had vitamin D measurements regarding gender, age, and season.