@misc{indiciaea5526fa26e93,
  title = {Measuring second-order selection bias in a work site health program.},
  author = {M Sepulveda and A Goetz and J Grana},
  year = {1994},
  doi = {10.1097/00043764-199403000-00010},
  url = {https://pubmed.ncbi.nlm.nih.gov/8195903/},
  note = {Source identifier: 8195903}
}