Can I use a CC BY-SA model commercially?
Yes, if the specific model is identified as CC BY-SA 4.0 and you follow the license conditions, including attribution and ShareAlike.
Are all NDM3D models Creative Commons?
No. Some active models are NDM3D-owned, and some are Z-Anatomy-derived/open-licensed. Check the individual model page.
Stage 3 public legal layer. This page publishes only model-facing source, license, attribution, and change notices.