CATCH-UP vaccines: protocol for a randomized controlled trial using the multiphase optimization strategy (MOST) framework to evaluate education interventions to increase COVID-19 vaccine uptake in Oklahoma

补种疫苗：一项采用多阶段优化策略 (MOST) 框架的随机对照试验方案，旨在评估教育干预措施在提高俄克拉荷马州新冠疫苗接种率方面的效果。