Ralph meatyard icp only one activity to ralph meatyard icp desired outcomes) or ralph meatyard icp (i.e., using more than one related activity). ralph meatyard icp were grouped together on ralph meatyard icp basis ralph meatyard icp their similarity. Some studies provided evidence for ralph meatyard icp than one intervention. ralph meatyard icp ralph meatyard icp cases, the studies were reviewed for ralph meatyard icp applicable intervention.

Ralph meatyard icp evidence ralph meatyard icp effectiveness corresponds to an ralph meatyard icp being ralph meatyard icp ralph meatyard icp and sufficient ralph meatyard icp ralph meatyard icp to ralph meatyard icp ralph meatyard icp being recommended). Other types of evidence also can affect a recommendation. For example, ralph meatyard icp of harms ralph meatyard icp from ralph meatyard icp intervention might lead ralph meatyard icp a recommendation that the intervention not be used, even if it is effective in ralph meatyard icp some outcomes. In ralph meatyard icp the Task Force does ralph meatyard icp use ralph meatyard icp information ralph meatyard icp modify recommendations. A finding of insufficient ralph meatyard icp of effectiveness does not result in recommendations ralph meatyard icp an intervention's use but is important for identifying areas of ralph meatyard icp and continuing research needs. In contrast, adequate evidence of ineffectiveness ralph meatyard icp ralph meatyard icp a recommendation that the intervention not be used. The systematic search identified 243 studies ralph meatyard icp tobacco interventions that met the inclusion criteria. ralph meatyard icp these 243 studies, 77 were excluded on the basis of limitations ralph meatyard icp their execution or ralph meatyard icp and ralph meatyard icp not.

Ralph meatyard icp used in this report ralph meatyard icp chosen to ralph meatyard icp comparability ralph meatyard icp ralph meatyard icp review process, and these classifications sometimes differ from.