Article info
Illuminations
Puzzling pyramids
- Correspondence to Dr Helen Williams, Department of Radiology, Birmingham Children’s Hospital, Steelhouse Lane, Birmingham B4 6NH, UK; helen.williams32{at}nhs.net
Citation
Puzzling pyramids
Publication history
- Accepted September 6, 2017
- First published October 22, 2017.
Online issue publication
July 20, 2018
Article Versions
- Previous version (22 October 2017).
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© Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.