Nicotine preloading for smoking cessation: the Preloading RCT by Aveyard, P, Lindson, N, Tearne, S, Adams, R, Ahmed, K, Alekna, R, Banting, M, Healy, M, Khan, S, Rai, G, Wood, C, Anderson, E, Ataya-Williams, A, Attwood, A, Easey, K, Fluharty, M, Freuler, T, Hurse, M, Khouja, J, Lacey, L, Munafò, M, Lycett, D, McEwen, A, Coleman, T, Dickinson, A, Lewis, S, Orton, S, Perdue, J, Randall, C, Anderson, R, Bisal, N, Hajek, P, Homsey, C, McRobbie, H, Myers-Smith, K, Phillips, A, Przulj, D, Li, J, Coyle, D, Coyle, K, Pokhrel, S