Research Article
Circulating 25-Hydroxyvitamin D Levels in Fully Breastfed Infants on Oral Vitamin D Supplementation
Table 2
Circulating 25(OH)D (ng/mL) at visits 1, 4, and 7 by season. Sunny months at latitude based on ultraviolet light indices occur from April through October. Relative nonsunny months comparatively occur from November through March.
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