AU - Tanyıldız, Hikmet Gülşah AU - Yavuz, Gülsan AU - Ünal, Emel AU - Dinçaslan, Handan AU - Taçyıldız, Nurdan TI - Vitamin D Levels and Deficiency Etiology in Cancer Patients with Vitamin D Deficiency at The Time of Diagnosis PT - Journal Article DP - 2019 TA - Van Med J PG - 24-28 VI - 26 IP - 1 AID - 10.5505/vtd.2018.37232 [doi] 4100 - https://dx.doi.org/10.5505/vtd.2018.37232 SO - Van Medical Journal, 2019 26(1):24