TY  - RPRT
TI  - Routine or indicated operative cholangiography?
AU  - R Cade
AU  - B Collopy
AU  - P Ryan
PY  - 1980
DO  - 10.1111/j.1445-2197.1980.tb04174.x
UR  - https://pubmed.ncbi.nlm.nih.gov/6934757/
ID  - 6934757
ER  -