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Feuz, J. Vitamin D receptor genotype BB is associated with higher serum osteocalcin in first pregnancy. 2010, University of Zurich, Faculty of Medicine.
Feuz, J; Wisser, J; Heufelder, A; Joba, W; Zimmermann, R; von Mandach, U (2009). Vitamin D receptor genotype BB is associated with higher serum osteocalcin in first pregnanca. Journal of Perinatal Medicine, 37(5):491-495.