[ALittleLight]

I think you could, and should anyways, make the data anonymous. Just give every participant a GUID for a participant ID and add a step to purge personally identifiable information. Then you can share records without identity.

[tobylane]

That didn’t work for the AOL research several years ago. https://arstechnica.com/tech-policy/2009/09/your-secrets-liv...

[Fomite]

Making things like medical records actually anonymous, especially in the face of bad actors, is an unsolved problem.