“…Barriers related to participation and coordination included poor coordination and siloed working between different stakeholders (Atun et al, 2007;Parmar et al, 2007;Cometto, Fritsche and Sondorp, 2010;Zwi et al, 2011;Olu et al, 2015;Marzouk et al, 2019;Akik et al, 2020;Altare et al, 2020;Amodu et al, 2020;Mammana et al, 2020), tension and lack of trust between different actors (Cometto, Fritsche and Sondorp, 2010;Palmer, Robert and Kansiime, 2017;Atallah et al, 2018;Aembe and Dijkzeul, 2019;Duclos et al, 2019;, hierarchical structures within organisations (Tanaka et al, 2004;Atun et al, 2007;Zwi et al, 2011;Olu et al, 2015), vertical programme delivery (Atallah et al, 2018;Aembe and Dijkzeul, 2019;Akik et al, 2020), a lack of understanding of referrals processes from primary care to specialist services (Palmer, Robert and Kansiime, 2017;, high turnover of health staff that affected relationships (Karemere et al, 2015) and NGOs needing to fill gaps left by government, which linked to coordination challenges (Pursch et al, 2020). Other barriers included, in the Syrian response, the presence of multiple coordinating hubs with different approaches implemented by humanitarian actors and the government, and fragmentation as a result of the conflict, all of which affected coordination (Akik et al, 2020).…”