@article{23947,
  author = {Si L and Greenfield D and Kinsman L},
  title = {Hospital length of stay variation and comorbidity of mental illness: A retrospective study of five common chronic medical conditions},
  year = {2018},
  journal = {BMC Health Services Research},
  volume = {18},
  doi = {10.1186/s12913-018-3316-2},
  language = {eng},
}