[Mailman-Users] Posting with sending ID concealed

[Dr. Scott S. Jones]

I operate a mailing list to issues updates and information to my patients.
The list is fully moderated, disallowing anyone to post without review. 

Occasionally, I get some patients who respond back to something I send, and
I want to post their response, but I'd like to have it post with the
identity of the original poster concealed. 

Is this possible? 

Dr. Jones