Images in focus. Self-knotting of feeding tube.

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Cite this paper

@article{Ha2001ImagesIF, title={Images in focus. Self-knotting of feeding tube.}, author={Joe Ping Yiu Ha and Wing Tai Siu and Chung Ngai Tang and Michael K W Li}, journal={Endoscopy}, year={2001}, volume={33 7}, pages={644} }