TY - GEN AU - Mekov,Evgeni AU - Slavova,Yanina AU - Tsakova,Adelina AU - Genova,Marianka AU - Kostadinov,Dimitar AU - Minchev,Delcho AU - Marinova,Dora AU - Tafradjiiska,Maya TI - Vitamin D Deficiency and Insufficiency in Hospitalized COPD Patients SN - 1932-6203 PY - 2016///0325 KW - Adult KW - Aged KW - Aged, 80 and over KW - Bulgaria KW - epidemiology KW - Comorbidity KW - Female KW - Hospitalization KW - Humans KW - Length of Stay KW - Male KW - Middle Aged KW - Pulmonary Disease, Chronic Obstructive KW - blood KW - Quality of Life KW - Risk Factors KW - Vitamin D KW - Vitamin D Deficiency N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1371/journal.pone.0129080 ER -