Sharon L. Lewis, RN, PhD, FAAN, Research Professor, Castella Distinguished Professor, School of Nursing, University of Texas Health Science Center at San Antonio, San Antonio, TX and Margaret M. Heitkemper, RN, PhD, FAAN, Professor and Chairperson, Biobehavioral Nursing and Health Systems, Elizabeth Sterling Soule Endowed Chair in Nursing, School of Nursing; Adjunct Professor, Division of Gastroenterology, School of Medicine, University of Washington, Seattle, WA