Anatomical context source: NIH 3D entry 3DPX-015682, version 2.
https://3d.nih.gov/entries/3DPX-015682

Weissbrod, E (HJF), Jones, E (USU), Mateo, RB (USU), “3D Models of the Male
Pelvis with L4, L5 Vertebrae and Proximal Femur,” Department of Surgery,
Uniformed Services University of the Health Sciences.

License: Creative Commons Attribution-NonCommercial-ShareAlike 4.0
International: https://creativecommons.org/licenses/by-nc-sa/4.0/

The left and right hip bones and sacrum are used as a separate context mesh.
Coordinates are rigidly reoriented and placed approximately with the
Z-Anatomy skeleton; the hip meshes are mirrored across the midline to match
that skeleton's displayed left/right convention. No anatomical sculpting or
decimation was applied. This is not a validated cross-dataset registration.
Derived geometry remains CC BY-NC-SA 4.0. NIH hosting does not imply
endorsement.