Cluster randomised control trial protocol for estimating the effectiveness and cost-effectiveness of a complex intervention to increase care home staff influenza vaccination rates... oleh Amrish Patel, Erika Sims, Jeanette Blacklock, Linda Birt, Veronica Bion, Allan Clark, Alys Griffiths, Cecile Guillard, Amber Hammond, Richard Holland, Andy Jones, Liz Jones, Thando Katangwe-Chigamba, Jennifer Pitcher, Po Ruby, Sion Scott, Adam P. Wagner, Saiqa Ahmed, Wasim Baqir, Luke Cook, Tony Dean, David Wright