Lack of research put under pressure.

  title={Lack of research put under pressure.},
  author={K S Gehhardt},
  journal={Nursing standard (Royal College of Nursing (Great Britain) : 1987)},
  volume={8 42},
We do not know the intrinsic cause of pressure sores, nor the best way to assist in their healing. We are only beginning to understand how to prevent them. These gaps in our knowledge can only be filled with properly conducted, controlled, clinical trials.