@misc{indiciaea0ec36996a13,
  title = {A variable height "wobble board".},
  author = {J A Moncur},
  year = {1977},
  doi = {10.1136/bjsm.11.4.178},
  url = {https://pubmed.ncbi.nlm.nih.gov/23883/},
  note = {Source identifier: 23883}
}