@misc{indiciaecb7d61a32535,
  title = {Speech defects in children.},
  author = {N Butler and M D Sheridan and C Peckham},
  year = {1973},
  doi = {10.1136/bmj.2.5869.780-d},
  url = {https://pubmed.ncbi.nlm.nih.gov/4718339/},
  note = {Source identifier: 4718339}
}