1. “pilot*”.mp 2. “feasibil*”.mp 3. 1 OR 2 4. “step* wedge*”.mp 5. “step*wedge*”.mp 6. “delay* intervention”.mp 7. “experimental* staged introduction”.mp 8. (“one* direction* crossover design” OR “one* direction* cross* over design”).mp 9. (“incremental* recruitment” OR “incremental* introduction” OR “incremental* implementation” OR “incremental* allocation”).mp 10. (“phased* recruitment” OR “phased* introduction” OR “phased* implementation” OR “phased* allocation”).mp 11. (“staggered* recruitment” OR “staggered* introduction” OR “staggered* implementation” OR “staggered*allocation”).mp 12. (“stepwise* recruitment” OR “stepwise* introduction” OR “stepwise* implementation” OR “stepwise*allocation”).mp 13. (“step*wise* recruitment” OR “step*wise* introduction” OR “step*wise* implementation” OR “step*wise*allocation”).mp 14. (“delayed* recruitment” OR “delayed* introduction” OR “delayed* implementation” OR “delayed*allocation”).mp 15. or/4–14 16. 3 AND 15 17. limit 16 to English language |