Validity of short-term consequences of cancer prevention and screening activities?

@article{Brodersen2005ValidityOS,
  title={Validity of short-term consequences of cancer prevention and screening activities?},
  author={John Brodersen and Hanne Kristin Thorsen and Jill Cockburn},
  journal={Journal of clinical oncology : official journal of the American Society of Clinical Oncology},
  year={2005},
  volume={23 1},
  pages={244; author reply 244-5}
}