McAdams, H. P., Johnson, G. A., Suddarth, S. A., Sherrier, R. H., & Ravin, C. E. (1987). Implementation of adaptive filtration for digital chest imaging. Optical Engineering, 26(7), 669–674. https://www.spiedigitallibrary.org/journals/Optical-Engineering/volume-26/issue-7/267669/Implementation-Of-Adaptive-Filtration-For-Digital-Chest-Imaging/10.1117/12.7974133.short?SSO=1

Johnson, G. A., Thompson, M. B., & Drayer, B. P. (1987). Three-dimensional MRI microscopy of the normal rat brain. Magnetic Resonance in Medicine, 4(4), 351–365. https://onlinelibrary.wiley.com/doi/abs/10.1002/mrm.1910040406

Utz, J. A., Herfkens, R. J., Johnson, C. D., Shimakawa, A., Pelc, N., Glover, G., Johnson, G. A., Spritzer, C. E. (1987). Two-second MR images: comparison with spin-echo images in 29 patients. Ajr Am J Roentgenol, 148(3), 629–633. https://doi.org/10.2214/ajr.148.3.629

Sherrier, R. H., Chiles, C., Johnson, G. A., & Ravin, C. E. (1987). Differentiation of benign from malignant pulmonary nodules with digitized chest radiographs. Radiology, 162(3), 645–649. https://doi.org/10.1148/radiology.162.3.3809476

Stude, R. A., Hedlund, L. W., Johnson, G. A., & Thompson, W. M. (1987). Contrast enhancement of the liver. Evaluation by automated contiguous pixel search. Invest Radiol, 22(2), 132–136. https://doi.org/10.1097/00004424-198702000-00008

Karis, J. P., Allan Johnson, G., & Glover, G. H. (1987). Signal-to-noise improvements in three-dimensional NMR microscopy using limited-angle excitation. Journal of Magnetic Resonance (1969), 71(1), 24–33. https://doi.org/10.1016/0022-2364(87)90124-7

Brown, J. M., Johnson, G. A., & Kramer, P. J. (1986). In Vivo Magnetic Resonance Microscopy of Changing Water Content in Pelargonium hortorum Roots. Plant Physiol, 82(4), 1158–1160. https://doi.org/10.1104/pp.82.4.1158

Hedlund, L. W., Johnson, G. A., & Mills, G. I. (1986). Magnetic resonance microscopy of the rat thorax and abdomen. Invest Radiol, 21(11), 843–846. https://doi.org/10.1097/00004424-198611000-00002

Hedlund, L. W., Johnson, G. A., Karis, J. P., & Effmann, E. L. (1986). MR "microscopy" of the rat thorax. J Comput Assist Tomogr, 10(6), 948–952. https://doi.org/10.1097/00004728-198611000-00010

Bone, S. N., Johnson, G. A., & Thompson, M. B. (1986). MRI Microscopy of the developing chick-embryo. Investigative Radiology, 21(9), S34–S34. https://www.ncbi.nlm.nih.gov/pubmed/3771148