<qa>  How many clinics were in the study?PROS practices were randomly assigned to either Group 1 violence prevention intervention or Group 2 literacy promotion effort. The study included a total of 137 clinics across the country, 242 practitioners, and 4,890 patients ages 2 to 11 years old. Group 1 providers received a community violence prevention resource worksheet to help them identify community specific assets. Patient families parentlegal guardian received tools to help them adhere to provider recommendations. Providers were trained to apply brief techniques of motivational interviewing to help ascertain patient-centered motivation to change violence-related behaviors. Patient families knowledge, attitudes, and self-reported behaviors were examined prior to the well child exam and at 1 and 6 months after the well child exam. Baseline data were collected in the waiting room; the data forms took 10 minutes to complete. Follow-up telephone interviews were conducted at 1 and 6 months and took 10 minutes to complete. 