Research Article
Association of Serum Level of 25-Hydroxy Vitamin D Deficiency and Pulmonary Function in Healthy Individuals
Figure 1
Positive correlation of the serum 25(OH)D with indices of spirometry test in healthy individuals. FVC, forced vital capacity; FEV1, forced expiratory volume in 1 second; FEF25–75%, maximum mid-expiratory flow or forced expiratory flow 25–75%.