TY  - RPRT
TI  - [Intraoperative cholangiography--causes of technical errors].
AU  - J Póltorak
AU  - W Wiechno
AU  - M Zakrzewski
PY  - 1974
UR  - https://pubmed.ncbi.nlm.nih.gov/4839852/
ID  - 4839852
ER  -