Very interesting tale http://elephanttube.in.net/ elephant tube.com For the new study, conducted at Stollery Children's Hospital in Edmonton between January 2009 and March 2010, Hartling and her colleagues randomly assigned 42 children to either listen to music playing out loud in the room, or not, while intravenous (IV) needles were inserted into their arm in the ED. The same music recordings were played for each child.