Julie K. Johnson, MSPH, PhD, is Professor of Surgical Oncology at the Northwestern University FeinbergDr. Johnson's career interests involve building a series of collaborative relationships to improve the quality and safety of health care through teaching, research, and clinical improvement. She has a master's degree in public health from the University of North Carolina and a PhD in evaluative clinical sciences from Dartmouth College in Hanover, New Hampshire.'Since completing her PhD in 2000, Dr. Johnson has focused her research on activities related to quality and safety of patient care and qualitative evaluation of clinical microsystems. She has extensive experience conducting qualitative research as part of implementation research studies and has used qualitative evaluation methods to study errors in ambulatory pediatric settings, to conduct observations in pediatric cardiac surgery, to observe how clinical teams function on inpatient medicine rounds, and to improve handovers of patient care.'