For any drag to work, there needs to be a way to indicate draggability. In the prior examples the only indication that something was draggable was the cursor change on mouse hover.

Pre- and poststudies using CT may enable us to understand which components of lung disease are reversible, for example, airway wall thickening, and facilitate targeted, lower radiation, limited scans.

A Myrish crossbowman poked his head out a different window, got off a bolt, and ducked down to rewind.

Dipper: What in the heck happened on that date? Mabel: I don't know. I was in the friend zone, and then before I knew what was happening, he pulled me into romance zone!