@misc{indiciae9c910133c68a,
  title = {An obturator velum hinge.},
  author = {A C Roberts},
  year = {1967},
  doi = {10.1016/s0007-117x(66)80048-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/5228989/},
  note = {Source identifier: 5228989}
}