In a recent investigative piece on Massachusetts General Hospital, the Boston Globe casts light on the practice, common in certain hospitals, of "double booking" surgeons. In the name of efficiency, a particularly in-demand surgeon will participate in two procedures scheduled at the same time by moving back and forth between the two operating roomsa practice that, unsurprisingly, occasionally renders the surgeon difficult to locate when a need arises in one of the rooms. What ethical provision(s) do you think may have been violated by this "team approach