Bywater, Tracey, Berry, Vashti, Blower, Sarah Louise, Cohen, Judith, Gridley, Nicole, Kiernan, Kathleen, Mandefield, Laura, Mason-Jones, Amanda, McGilloway, Sinéad, McKendrick, Kirsty, Pickett, Kate, Richardson, Gerry, Teare, M. Dawn, Tracey, Louise, Walker, Simon, Whittaker, Karen and Wright, Jessica (2018) Enhancing Social-Emotional Health and Wellbeing in the Early Years (E-SEE): a study protocol of a community-based randomised controlled trial with process and economic evaluations of the incredible years infant and toddler parenting programmes, delivered in a proportionate universal model. BMJ Open, 8 (12). e026906. ISSN 2044-6055