@misc{indiciaef412dfc1d3b2,
  title = {The factorial survey: an experimental method to replicate real world problems.},
  author = {R Ludwick and R A Zeller},
  doi = {10.1097/00006199-200103000-00009},
  url = {https://pubmed.ncbi.nlm.nih.gov/11302293/},
  note = {Source identifier: 11302293}
}