@article{manske2009,
  title={Classification and Developmental Biology of Congenital Anomalies of the Hand and Upper Extremity},
  author={Paul R. Manske and Kerby C. Oberg},
  year={2009},
  journal={Journal of Bone and Joint Surgery},
  doi={10.2106/jbjs.i.00008},
  url={https://doi.org/10.2106/jbjs.i.00008}
}