@misc{indiciae033d03836d6f,
  title = {Grumpiness.},
  author = {A F Vansant},
  year = {2001},
  doi = {10.1097/00001577-200110000-00001},
  url = {https://pubmed.ncbi.nlm.nih.gov/17053666/},
  note = {Source identifier: 17053666}
}