@misc{indiciaee25123bd7f41, title = {[Percutaneous transhepatic cholangioscopy as a single-step technique].}, author = {H von Sanden and W Schmitt and W Wegerle and R Ottenjann}, year = {1991}, url = {https://pubmed.ncbi.nlm.nih.gov/1950035/}, note = {Source identifier: 1950035} }