Clinical variation in Usher's syndrome.

@article{McLeod1971ClinicalVI,
  title={Clinical variation in Usher's syndrome.},
  author={A C McLeod and F E McConnell and Aaron Sweeney and Marie A. Cooper and Walter E. Nance},
  journal={Archives of otolaryngology},
  year={1971},
  volume={94 4},
  pages={321-34}
}