@misc{indiciaed479d1c80058,
  title = {Is the lecithin/sphingomyelin ratio outdated?},
  author = {D K James and V R Tindall and T Richardson},
  year = {1983},
  doi = {10.1111/j.1471-0528.1983.tb06436.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/6639903/},
  note = {Source identifier: 6639903}
}