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The effect of an exercise program in pregnancy on vitamin D status among healthy, pregnant Norwegian women: a randomized controlled trial.

Miriam K GustafssonPål R RomundstadSigne Nilssen StafneAnne-Sofie HelvikAstrid Kamilla StunesSiv MørkvedKjell Åsmund SalvesenPer Medbøe ThorsbyMats Peder MostiUnni Syversen
Published in: BMC pregnancy and childbirth (2019)
ClinicalTrials.gov: NCT00476567 , registered May 22, 2007.
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