Vitamin D Levels and Risk of Acute Exacerbations of Chronic Obstructive Pulmonary Disease: a Prospective Cohort Study Full Text
American Journal of Respiratory and Critical Care Medicine, 11/11/2011
Kunisaki KM et al. – In patients with severe chronic obstructive pulmonary disease, baseline 25(OH)D levels are not predictive of subsequent acute exacerbations of COPD.



