Ruminal tympany due to a trichobezoar in a heifer.

@article{Schweizer2005RuminalTD,
  title={Ruminal tympany due to a trichobezoar in a heifer.},
  author={Gabi Schweizer and Mark Flueckiger and Lorenz Metzger and Ueli Braun},
  journal={Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association},
  year={2005},
  volume={46 6},
  pages={500-1}
}