Bioavailability of Vitamin D2 and D3 in Healthy Volunteers, a Randomized Placebo-Controlled Trial.
Lehmann, Ulrike; Hirche, Frank; Stangl, Gabriele I.; Hinz, Katja; Westphal, Sabine; Dierkes, Jutta
[Miscellaneous] Journal of Clinical Endocrinology & Metabolism. 98(11):4339-4345, November 2013.

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