Thieme, G. A., W. R. Hendee, G. S. Ibbott, P. L. Carson, and D. L. Kirch. “Cross-Sectional Anatomic Images by Gamma Ray Transmission Scanning”. Acta Oncologica 14, no. 1 (January 1, 1975): 81–112. Accessed May 17, 2026. https://medicaljournalssweden.se/actaoncologica/article/view/34081.