@misc{indiciaede5191b090dd,
  title = {Theory and practice.},
  author = {J W Todd},
  year = {1972},
  doi = {10.1016/s0140-6736(72)90018-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/4108827/},
  note = {Source identifier: 4108827}
}