@misc{indiciae089daa5d664a,
  title = {Determining plasma-renin activity.},
  author = {J G Ledingham and M R Lee},
  year = {1969},
  doi = {10.1016/s0140-6736(69)91633-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4179609/},
  note = {Source identifier: 4179609}
}