@misc{indiciae277c221cc666, title = {Acalculous gallbladder disease: a prospective study.}, author = {N C Keddie and A L Gough and R B Galland}, year = {1976}, doi = {10.1002/bjs.1800631016}, url = {https://pubmed.ncbi.nlm.nih.gov/990699/}, note = {Source identifier: 990699} }