Studies of educational strategies to change physician behavior suggest that informational material and formal CME conferences have little impact, while outreach activities by professional organizations and opinion leaders conducting on-site educational programs produce positive change.
Informational material seems to have a significant impact on physician behavior. 
mnli hypothesis: Informational material seems to have a significant impact on physician behavior.  premise: Studies of educational strategies to change physician behavior suggest that informational material and formal CME conferences have little impact, while outreach activities by professional organizations and opinion leaders conducting on-site educational programs produce positive change.