TY  - RPRT
TI  - Estimating gallstone incidence from prevalence data.
AU  - A B Lowenfels
AU  - J P Velema
PY  - 1992
DO  - 10.3109/00365529209000175
UR  - https://pubmed.ncbi.nlm.nih.gov/1295496/
ID  - 1295496
ER  -