@misc{indiciaeb85736b4e1fb,
  title = {[Spasm after awakening; harmless?].},
  author = {R A Bernsen and J van der Naalt and S Boonstra},
  year = {1993},
  url = {https://pubmed.ncbi.nlm.nih.gov/8277993/},
  note = {Source identifier: 8277993}
}