title: The effect of seasonal variations on vitamin D levels in pregnant women.
authors: Department of Obstetrics and Gynecology, Canakkale State Hospital, Canakkale, Turkey, fatmabeyazit@yahoo.com.
authors: Fatma
authors: F
authors: Beyazit
authors: Yavuz
authors: Y
authors: Beyazit
mesh_terms: D004461:Eclampsia / Q000097:blood*; D005260:Female; D006801:Humans; D011225:Pre-Eclampsia / Q000097:blood*; D011247:Pregnancy; D014807:Vitamin D / Q000097:blood*; D014808:Vitamin D Deficiency / Q000097:blood*
chemical_list: D014807:Vitamin D