@misc{indiciae3f2dec07c271,
  title = {The problem back.},
  author = {J E KIRKPATRICK},
  year = {1958},
  doi = {10.1001/jama.1958.03000140026006},
  url = {https://pubmed.ncbi.nlm.nih.gov/13598617/},
  note = {Source identifier: 13598617}
}