@misc{indiciae21ba7130615e,
  title = {Some aetiological problems in mental deficiency.},
  author = {J M BERG and B H KIRMAN},
  year = {1959},
  doi = {10.1136/bmj.2.5156.848},
  url = {https://pubmed.ncbi.nlm.nih.gov/13799225/},
  note = {Source identifier: 13799225}
}