Effects of exposure to bodies of different sizes on perception of and satisfaction with own body size: Two randomised studies by Bould, H, Carnegie, R, Allward, H, Bacon, E, Lambe, E, Sapseid, M, Button, K, Lewis, G, Skinner, A, Broome, M, Park, R, Harmer, C, Penton-Voak, I, Munafo, M