Organisational interventions for preventing and minimising aggression directed toward healthcare workers by patients and patient advocates Evelien Spelten, Brodie Thomas, Peter F O'Meara, Brian J Maguire, Deirdre FitzGerald, Stephen J Begg Online Publication Date: May 2017 Protocol The protocol describes the rationale, objectives, and methods that will be used in the systematic review. Intervention A systematic review of studies assessing an intervention for a health problem.