@misc{indiciaee27309a2fe1d,
  title = {Normal serum vitamin D levels.},
  author = {Bruce W Hollis and Carol L Wagner},
  year = {2005},
  doi = {10.1056/nejm200502033520521},
  url = {https://pubmed.ncbi.nlm.nih.gov/15689596/},
  note = {Source identifier: 15689596}
}