@misc{indiciae4971aea4e450,
  title = {Partial shifts.},
  author = {B N Summers and J S Dwyer},
  year = {1992},
  doi = {10.1136/bmj.305.6864.1297-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/1477595/},
  note = {Source identifier: 1477595}
}