@misc{indiciae506ddc0124f5, title = {Open access upper gastrointestinal endoscopy.}, author = {Z Fireman and V Agrast and Y Kopelman and A Segal and A Sternberg}, doi = {10.1016/s1590-8658(01)80142-0}, url = {https://pubmed.ncbi.nlm.nih.gov/11303983/}, note = {Source identifier: 11303983} }