TY  - RPRT
TI  - Operative cholangiography cost-effectiveness--routine versus selective utilization.
AU  - A M de Almeida
AU  - F J Aldeia
AU  - N M dos Santos
AU  - C W Gracias
UR  - https://pubmed.ncbi.nlm.nih.gov/6440420/
ID  - 6440420
ER  -