@article{mccarney2007-17608932,
  author  = {McCarney, R. and Warner, J. and Iliffe, S. and van Haselen, R. and Griffin, M. and Fisher, P.},
  title   = {{The Hawthorne Effect: a randomised, controlled trial}},
  journal = {BMC medical research methodology},
  year    = {2007},
  doi     = {10.1186/1471-2288-7-30},
  pmid    = {17608932},
  url     = {https://doi.org/10.1186/1471-2288-7-30}
}