anchor: For example, he noted that the American College of Surgeons' Resources for Optimal Care of the Injured  1999, which contains guidelines for the certification of trauma centers, omitted the requirement to test patients' blood alcohol content for the first time in 20 years.
positive: The guidelines in 1999 neglected to require blood alcohol content testing.
negative: The 1999 guidelines included the requirement of blood alcohol content testing in patients.