Two nurses from Marion County have landed on the 2013 list of Great Iowa nurses. Diane McCombs, at Pella Regional Health Center, and Deb Lefler, at Knoxville Hospital and Clinics, were named to the list last week. Each year, the 100 Great Iowa Nurses organization receives nominations and selects 100 nurses based on their concern for humanity, contributions to the nursing profession, and their leadership and mentoring. McCombs, Lefler, and the 98 other nurses will be honored at a ceremony in Des Moines on May 5th. Both live in Knoxville.