A couple more myh perpetuating scenes from St. Elsewhere, (if any of you are old enough to remember it). First, the Chief of Staff of a 500 bed hospital is showing a foreign counterpart a modern hospital lab including a state of the art hematology analyzer - a Coulter Z. Second, ER doc screams for four units O neg thpe and crossed on a patient just wheeled. Nurse rushes out and returns 1 minute later with the four units.