Goslinga points to the low mortality rates at UMC Utrecht. “When Ivo was four days old, he underwent one of the most complex heart operations there is. In Utrecht he had 11 percent death, in Groningen that is 24 percent, more than double.” Later, Ivo underwent two more heart operations. “Here he had a 2.5 percent chance of dying, in Groningen 6.8 percent. Groningen does far fewer operations, so the expertise is less there.”