Hedlund, L. W., Jones, D. P., Effmann, E. L., Johnson, G. A., Bates, W. M., Beck, J. W., Wolfe, W., Putman, C. E. (1981). A computed tomographic study of the dog lung during hemorrhagic shock and after resuscitation. Invest Radiol, 16(6), 466–472. https://doi.org/10.1097/00004424-198111000-00003

Halvorsen, R. A., Woodfield, S., T., R., Allen, S. M., Hedlung, L. W., Johnson, G. A., & Thompson, W. M. (1981). An evaluation of contrast agents for CT of the hepatobiliary system. Investigative Radiology, 16(5), 387–387. https://doi.org/10.1097/00004424-198109000-00053

Johnson, G. A., Korobkin, M., & Heinz, R. (1981). An Evaluation of Multiplanar Imaging Capabilities of 4 Current CT Scanners. American Journal of Roentgenology, 136(6), 1279–1279. https://doi.org/10.1117/12.931819

Hedlund, L., Jones, D., Effmann, E., Johnson, G.A., Bates, W., Wolfe, W., & Putman, C. (1981). Computerized Tomographic Study of the Dog Lung During Hemorrhagic-Shock. Investigative Radiology, 14(5), 369–369. https://insights.ovid.com/crossref?an=00004424-198111000-00003

Johnson, G. A., Ford, K., & Heinz, R. (1981). Digital Radiography Using the Quantex DS-20. Proceedings of Spie the International Society for Optical Engineering, 273, 114–119. https://doi.org/10.1117/12.931792

Johnson, G. A., & Ravin, C. E. (1981). Effect of vertical cassette holder design and construction on scatter-to-primary radiation ratios. Radiology, 138(2), 461–464. https://doi.org/10.1148/radiology.138.2.7455131

Johnson, G. A., Korobkin, M., & Heinz, E. R. (1981). Evaluation of multiplanar imaging capabilities of four current computed tomography (CT) scanners. Proceedings of Spie the International Society for Optical Engineering, 273, 318–325. https://doi.org/10.1117/12.931819

Johnson, G. A., Nelson, C. E., & OʼFoghludha, F. (1981). Imaging Limits in Digital Radiography. Investigative Radiology, 16(5), 377–377. https://doi.org/10.1097/00004424-198109000-00033

Korobkin, M., Johnson, G., & Breiman, R. (1981). Methodologic Considerations in Multiplanar Reformatting of Transaxial CT Images. Investigative Radiology, 16(5), 374–374. https://doi.org/10.1097/00004424-198109000-00027

Nelson, C. E., Johnson, G. A., & Bentel, G. (1981). Multi-Planar Reconsturction-Applications in Radiation Oncology Treatment Planning. Investigative Radiology, 16(5), 417–417. https://doi.org/10.1097/00004424-198109000-00113

O’Foghludha, F., & Johnson, G. A. (1981). Voltage waveform effects on output and penetration of W- and Mo-anode mammographic tubes. Phys Med Biol, 26(2), 291–303. https://doi.org/10.1088/0031-9155/26/2/008