@misc{1136961,
  author = {Mary Bedner and Katrice A. Lippa and Susan S.-C. Tai},
  title = {NIST/NIH Vitamin D Metabolites Quality Assurance Program Report of Participant Results: Winter 2012 Comparability Study(Exercise 5):},
  year = {2013},
  month = {2013-03-01 05:03:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.IR.7894},
  language = {en},
}