AU - Yılmaz Öztekin, Gülsüm Meral AU - Genç, Ahmet AU - Arslan, Şakir TI - Vitamin D Deficiency and Relation to the New York Heart Association Functional Class in Chronic Heart Failure PT - Journal Article DP - 2022 TA - Turk Kardiyol Dern Ars PG - 202-208 VI - 50 IP - 3 AID - 10.5543/tkda.2022.21024 [doi] 4100 - https://dx.doi.org/10.5543/tkda.2022.21024 SO - Archives of the Turkish Society of Cardiology, 2022 50(3):202