“…We added selected free-text terms and validated search terms for randomized, controlled trials (RCTs) and quasi-experimental studies, and we searched bibliographies of exemplary studies and applicable systematic reviews for missed publications (15,17,(20)(21)(22)(23)(24)(25)(26)(27)(28)(29). We added selected free-text terms and validated search terms for randomized, controlled trials (RCTs) and quasi-experimental studies, and we searched bibliographies of exemplary studies and applicable systematic reviews for missed publications (15,17,(20)(21)(22)(23)(24)(25)(26)(27)(28)(29).…”