Membrane asymmetry imposes directionality on lipid droplet emergence from the ER by Chorlay, A, Monticelli, L, Veríssimo Ferreira, J, Ben M'Barek, K, Ajjaji, D, Wang, S, Johnson, E, Beck, R, Omrane, M, Beller, M, Carvalho, P, Rachid Thiam, A