AU - Çelik, Saadet AU - Çelik, Mehmet AU - Takır, Mümtaz TI - Seasonal Variability of Serum 25-Hydroxy-Vitamin D Levels in the adult population living in Bilecik Province: A Follow-up Study from Turkey PT - Journal Article DP - 2018 TA - Medeniyet Med J PG - 296-299 VI - 33 IP - 4 AID - 10.5222/MMJ.2018.62347 [doi] 4100 - https://dx.doi.org/10.5222/MMJ.2018.62347 SO - Medeniyet Medical Journal, 2018 33(4):296