@misc{indiciaea4733a610e34, title = {[Cases of nonvisualized gallbladder by echography].}, author = {F Marotta and P Morello and L Hashimoto and M M Rahman and G Vitale}, year = {1988}, url = {https://pubmed.ncbi.nlm.nih.gov/3072239/}, note = {Source identifier: 3072239} }