Retroperitoneal perforation caused by endoscopic biopsy in a patient with ulcerative colitis and cytomegalovirus infection.

@article{Miyatani2007RetroperitonealPC,
  title={Retroperitoneal perforation caused by endoscopic biopsy in a patient with ulcerative colitis and cytomegalovirus infection.},
  author={Hiroyuki Miyatani and Yukiko Yoshida},
  journal={Endoscopy},
  year={2007},
  volume={39 Suppl 1},
  pages={E246}
}