@misc{indiciae009ffbc3d07a,
  title = {Barium outlining the maxillary sinus.},
  author = {J R Sunukjian and V E DiFabio},
  year = {1979},
  doi = {10.1016/0030-4220(79)90021-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/289936/},
  note = {Source identifier: 289936}
}