Sigmoidoscopic diagnosis of reversible vascular occlusion of the colon.

@article{Littman1963SigmoidoscopicDO,
  title={Sigmoidoscopic diagnosis of reversible vascular occlusion of the colon.},
  author={Louis Littman and Scott J. Boley and Stanley S. Schwartz},
  journal={Diseases of the colon and rectum},
  year={1963},
  volume={6},
  pages={142-6}
}