From the case:
Calcaneus (Gray's illustration)
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Calcaneus.
Case Discussion
Original diagrams from Gray's anatomy, now out of copyright. These diagrams have been reproduced from Gray's Anatomy 20th US edition which has now lapsed into the public domain
- https://commons.wikimedia.org/wiki/File:Gray264.png
- https://commons.wikimedia.org/wiki/File:Gray265.png
- https://commons.wikimedia.org/wiki/File:Gray266.png
- https://commons.wikimedia.org/wiki/File:Gray267.png