TY  - RPRT
TI  - [Endoscopic sonography in extrahepatic obstructive jaundice].
AU  - C Nattermann
AU  - H Dancygier
PY  - 1992
DO  - 10.1055/s-2008-1062445
UR  - https://pubmed.ncbi.nlm.nih.gov/1505352/
ID  - 1505352
ER  -