@article{singer2003-14655926,
  author  = {Singer, C. and Tractenberg, R. E. and Kaye, J. and Schafer, K. and Gamst, A. and Grundman, M. and Thomas, R. and Thal, L. J. and others},
  title   = {{A multicenter, placebo-controlled trial of melatonin for sleep disturbance in Alzheimer's disease}},
  journal = {Sleep},
  year    = {2003},
  doi     = {10.1093/sleep/26.7.893},
  pmid    = {14655926},
  url     = {https://doi.org/10.1093/sleep/26.7.893}
}