@article{confoundingvariablescandegrade,
  title = {Confounding variables can degrade generalization performance of radiological deep learning models},
  author = {John R. Zech and Marcus A. Badgeley and Manway Liu and Anthony B. Costa and Joseph J. Titano and Eric K. Oermann},
  year = {2018},
  eprint = {1807.00431},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1807.00431v2},
}