@misc{indiciaed6139306f2bf,
  title = {Interrupted time series analysis: a research technique for evaluating social programs for the elderly.},
  author = {R J Calsyn and E O Fergus and J L York},
  year = {1977},
  doi = {10.1093/geronj/32.1.89},
  url = {https://pubmed.ncbi.nlm.nih.gov/830740/},
  note = {Source identifier: 830740}
}