Inapparent carcinoma of the gallbladder.

@article{Frank1967InapparentCO,
  title={Inapparent carcinoma of the gallbladder.},
  author={Steven A. Frank and H. J. Spjut},
  journal={The American surgeon},
  year={1967},
  volume={33 5},
  pages={367-72}
}