@article{hshieh2008-18693233,
  author  = {Hshieh, T. T. and Fong, T. G. and Marcantonio, E. R. and Inouye, S. K.},
  title   = {{Cholinergic deficiency hypothesis in delirium: a synthesis of current evidence}},
  journal = {The journals of gerontology. Series A, Biological sciences and medical sciences},
  year    = {2008},
  doi     = {10.1093/gerona/63.7.764},
  pmid    = {18693233},
  url     = {https://doi.org/10.1093/gerona/63.7.764}
}