https://www.selleckchem.com/products/fasoracetam-ns-105.html the Netherlands (NL54313.100.15) and will be performed in accordance with the Declaration of Helsinki with the Medical Research Involving Human Subjects Act (WMO). The results of this study will be reported in peer-reviewed journals and at (inter)national conferences. Furthermore, we will share our findings with the appropriate guideline committees. TRIAL REGISTRATION NUMBER The Dutch Trial Registry (NL4010). © Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.INTRODUCTION Among preterm infants, mother's own milk feeding reduces neonatal morbidity and decreases the length of hospital stay. However, breastfeeding rates and duration are lower than among term infants. It is reported that peer counselling is effective in increasing breast feeding in term infants in low-income and middle-income countries, but results are mixed in high-income countries. We aim to investigate herein whether peer counselling may be a feasible and effective breastfeeding support among preterm infants in French-speaking high-income countries. METHODS AND ANALYSIS Eight European centres will participate in this stepped-wedge cluster randomised controlled trial. We plan to include 2400 hospitalised neonates born before 35 gestational weeks. Each centre will begin with an observational period. Every 3 months, a randomised cluster (centre) will begin the interventional period with peer counsellors until the end of the study. The counsellors will be trained and supervised by the trained nurses. Tor(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.OBJECTIVES To investigate the practices of healthcare professionals in relation to best practice recommendations for the multidisciplinary management of people with diabetes and periodontitis, focusing on two clinical behaviou