@misc{indiciaef3c407db9941,
  title = {How do you spell 21 mm.},
  author = {A Elami and L Caplan and E Rudis},
  year = {1999},
  doi = {10.1016/s1010-7940(99)00148-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/10485433/},
  note = {Source identifier: 10485433}
}