@misc{indiciaef5268cc60cd6,
  title = {Measurement techniques for magnetocardiography using a second order gradiometer.},
  author = {S C Ho and F P Ho and M M Chao and J H Wilkin and J W Miller},
  year = {1986},
  url = {https://pubmed.ncbi.nlm.nih.gov/3708073/},
  note = {Source identifier: 3708073}
}