@misc{indiciaec0595e41d78d,
  title = {Development of a constipation risk assessment scale.},
  author = {J Duffy and W Zernike},
  year = {1997},
  doi = {10.1111/j.1440-172x.1997.tb00111.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/9611538/},
  note = {Source identifier: 9611538}
}