According to this systematic review, few survey instruments for teamwork have been rigorously validated, and fewer still have been associated with nonself-reported outcomes. The authors suggest use of existing validated surveys to develop knowledge about teamwork, particularly AHRQ's Surveys on Patient Safety Culture as it is used to collect comparative data from hospitals across the United States. A previous AHRQ WebM&M interview with Dr. J. Bryan Sexton discussed teamwork and patient safety.