@misc{indiciaeec3df4456327, title = {Description of a prototype emission-transmission computed tomography imaging system}, author = {Lang, T. F. and Hasegawa, B. H. and Liew, S. C. and Brown, J. K. and Blankespoor, S. C. and Reilly, S. M. and Gingold, E. L. and Cann, C. E.}, year = {1992}, url = {https://ntrs.nasa.gov/citations/20050000601}, note = {Source identifier: 20050000601} }