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Three-year follow-up of serum 25-hydroxyvitamin D, parathyroid hormone, and bone mineral density in nursing home... http://t.co/WRsos73sZN
Three-year follow-up of serum 25-hydroxyvitamin D, parathyroid hormone, and bone mineral density in nursing home... http://t.co/WRsos73sZN
How long are vitamin D supplements effective for bone health? http://t.co/fi6QZK1l4J via Nutrition Journal