I don't know if this has been mentioned already but, why not a lottery? Each "life" at stake gets one entry: one for Neelix, one for Tuvok and one for Tuvix. If Tuvix's name is drawn, he gets to remain Tuvix. If one of the others is drawn, the Doctor proceeds with his cure. A random solution for a random accident.![]()
I guess that's an eloquent solution until someone decides it's your life that's the stakes in a game.