Providing Visual Information to Validate 2-D to 3-D Registration. Guéziec, A., Wu, K., Kalvin, A., Williamson, B., Kazanzides, P., & Van Vorhis, R. Medical Image Analysis, Dec, 2000.
bibtex   
@article{Gueziec2000,
  author = {Gu\'eziec, Andr\'e and Wu, Kenong and Kalvin, Alan and Williamson, Bill and Kazanzides, Peter
            and Van Vorhis, Robert},
  title = {Providing Visual Information to Validate {2-D} to {3-D} Registration},
  journal = {Medical Image Analysis},
  volume = {4},
  number = {4},
  month = {Dec},
  year = {2000}
}

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