“…However, there is still a long way to go, as an OH approach needs not only the awareness of the “field experts”, which was achieved with the OHEJP SimEx, but also political and organisational willingness and commitment. Indeed, leadership, governance, financing, and accountability have been described as systemic factors that can enhance intersectoral collaboration in OH [ [16] , [17] , [18] , [19] , [20] ]. In conclusion, our results reinforce the need for several strategic solutions to overcome these challenges, namely: 1) engaging partners and stakeholders in OH initiatives at an early stage; 2) improving the understanding of institutional missions, capacities, roles, and responsibilities; 3) developing policies and legal frameworks that support intersectoral collaboration; and 4) building capacity for intersectoral collaboration through training programmes and workshops that focus on OH principles and practices.…”