@misc{27636,
  author = {Mary Bedner and Katrice Lippa and Susan Tai},
  title = {NIST/NIH Vitamin D Metabolites Quality Assurance Program Report of Participant Results: Winter 2012 Comparability Study (Exercise 5)},
  year = {2013},
  month = {2013-03-18},
  publisher = {NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.IR.7894},
  language = {en},
}