E.R Easter Egg - Radar

In the final episode with Alan Alda, on the notice board that shows where patients are going next, for one patient about half way down, it says she is going to Radar. This should say Radiology, but is in fact a direct reference to M*A*S*H and the character in it. One of the other patients on the wall is called "M. Houlihan", another character out of M*A*S*H