@misc{indiciaecb072ab0830f,
  title = {Low-back pain during labor.},
  author = {R Melzack and D Schaffelberg},
  year = {1987},
  doi = {10.1016/0002-9378(87)90349-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/2953242/},
  note = {Source identifier: 2953242}
}