Geriatric assent.

@article{Molinari2004GeriatricA,
  title={Geriatric assent.},
  author={Victor A. Molinari and Laurence B McCollough and Richard H Workman and John H. Coverdale},
  journal={The Journal of clinical ethics},
  year={2004},
  volume={15 3},
  pages={261-8}
}