@misc{indiciae34bcec654a0c,
  title = {Observation by gravigoniometric test.},
  author = {I Watanabe and J Okubo and S Kodaka and K Tsutsumiuchi},
  year = {1980},
  url = {https://pubmed.ncbi.nlm.nih.gov/7246888/},
  note = {Source identifier: 7246888}
}