TY  - RPRT
TI  - Ursodeoxycholic acid and gallstone calcification.
AU  - R Raedsch
AU  - A Stiehl
AU  - P Czygan
PY  - 1981
DO  - 10.1016/s0140-6736(81)91541-5
UR  - https://pubmed.ncbi.nlm.nih.gov/6118713/
ID  - 6118713
ER  -