Figure 2
Percentage changes (Mean ± SE) in serum 25(OH)D by group assignment over the 4 years. The sample and the data analysis method are the same as Figure 1.
Figure 2 | Nutrition & Metabolism
Percentage changes (Mean ± SE) in serum 25(OH)D by group assignment over the 4 years. The sample and the data analysis method are the same as Figure 1.