In some cases, this is a simple problem of embedded traditions, or worse, resistance to something that could put you out of a job. In a lot of ways, though, the resistance to change in medicine is seen as an important safeguard; when you're dealing with people's lives, you hesitate before making any changes in procedure, because we know our current methods work okay. Even if there are others which seem to work much better, we should proceed cautiously. How worried are medical professionals about adopting the more opaque techniques of AI? Can you persuade people to accept a diagnosis from something that can't explain its reasoning? Are you worried about any "bugs" or undiscovered unusual behavior in edge cases?