@inproceedings{TsuprykovBuseSkobloetal.2017,
  author    = {Oleg Tsuprykov and Claudia Buse and Roman Skoblo and Berthold Hocher},
  title     = {Free 25 (OH) vitamin D, but not total 25 (OH) vitamin D, is strongly correlated with gestational age and calcium in normal human pregnancy},
  booktitle = {Journal of bone and mineral research},
  volume    = {32},
  pages     = {S323 -- S323},
  year      = {2017},
}