Problems with direct 25-Hydroxyvitamin D assays, and the target amount of vitamin D nutrition desirable for patients with osteoporosis CLICK HERE TO DOWNLOAD THE PDF Publication Date: November 2005 / Author: Reinhold Vieth / Categories: Journal Articles / Vieth Research / Vitamin D / 2018-01-17T17:05:05-05:00 Share This Document, Choose Your Platform: FacebookXRedditLinkedInTumblrPinterestVkEmail