Tag Alias: sling (medical) <-> arm sling

Aliasing sling (medical) <-> arm sling.

Reason: They seem to refer to the same thing. No preference regarding direction of alias.

Is the term sling exclusive to arms, or can it be used for other body parts?

I've never heard of it being used for anything else. I'd probably go for arm_sling as the target since it has a more descriptive name.

Okay, done. All the images sling_(medical) were with the arm so if we need to undo this, it can be done in one go.