High-Dose Oral Vitamin D Supplementation and Risk of Falls in Older Women Article in JAMA The Journal of the American Medical Association 304(8):854; author reply 856-7 · August 2010 Read it here: https://www.researchgate.net/publication/45827821_High-Dose_Oral_Vitamin_D_Supplementation_and_Risk_of_Falls_in_Older_Women