A direct marketing campaign may use multiple communications channels including mail, e-mail, phones, and face-to-face contact (See also Direct Mail Marketing) . Different channels will be selected based on the target group.
When Dr. Philip Drinker developed the iron lung in 1928, he was responding to a terrifying new disease that was causing sudden paralysis. Doctors called it poliomyelitis â or polio. The onset of the illness was sudden, with fever followed by acute paralysis.
Quick Answer. The Iron Curtain was a physical and symbolic structure used by the Soviet Union to isolate itself from surrounding eastern and central European nations after World War II. The Iron Curtain served as a way for the Soviet Union to isolate itself politically, militarily and ideologically from other nations in Europe.