Ossification of the distal femoral epiphysis.

@article{Caffey1958OssificationOT,
  title={Ossification of the distal femoral epiphysis.},
  author={J Caffey and Samuel H. Madell and C A ROYER and Patricia Morales},
  journal={The Journal of bone and joint surgery. American volume},
  year={1958},
  volume={40-A 3},
  pages={647-54 passim}
}