Bywater, Tracey, Berry, Vashti, Blower, Sarah, Cohen, Judith, Gridley, Nicole, Kiernan, Kathleen, Mandefield, Laura, Mason-Jones, Amanda, McGilloway, Sinéad et al (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). e02690.