@misc{indiciae9d52677f5aeb, title = {A linear tomographic alignment test object.}, author = {G T Barnes and R F Moreland}, year = {1981}, doi = {10.1148/radiology.141.1.7291536}, url = {https://pubmed.ncbi.nlm.nih.gov/7291536/}, note = {Source identifier: 7291536} }