Methods/design: A complex intervention using a mixed methods approach will be developed and evaluated. A pilot trial will assess the potential of this approach and provide information necessary to perform a cluster-randomized controlled trial (RCT). The cluster-randomized controlled trial (RCT) will together with qualitative interviews and observations, evaluate the effectiveness of the intervention. Outcomes will be measured at baseline (September /October 2016) at the end of the intervention which lasts for 7 months (May 2017), and 1 year after the end of the intervention (May 2018)