Behavioural intervention for weight loss maintenance versus standard weight advice in adults with obesity: A randomised controlled trial in the UK (NULevel Trial) by Sniehotta, F, Evans, E, Sainsbury, K, Adamson, A, Batterham, A, Becker, F, Brown, H, Dombrowski, S, Jackson, D, Howell, D, Ladha, K, McColl, E, Olivier, P, Rothman, A, Steel, A, Vale, L, Vieira, R, White, M, Wright, P, Araújo-Soares, V