TY  - RPRT
TI  - Nonvisualized gallbladder on oral cholecystography: implications for lithotripsy.
AU  - K Wong
AU  - O Ekberg
AU  - I Laufer
AU  - P F Malet
AU  - P Arger
PY  - 1990
DO  - 10.1007/bf01888754
UR  - https://pubmed.ncbi.nlm.nih.gov/2180774/
ID  - 2180774
ER  -