@misc{indiciae3a5720827744,
  title = {An alternative method for Ra determinations in water.},
  author = {D H Loyd and E N Drake},
  year = {1989},
  doi = {10.1097/00004032-198907000-00009},
  url = {https://pubmed.ncbi.nlm.nih.gov/2745099/},
  note = {Source identifier: 2745099}
}