Adiposity and endometrial cancer risk in postmenopausal women: a sequential causal mediation analysis by Dashti, SG, English, DR, Simpson, JA, Karahalios, A, Moreno-Betancur, M, Biessy, C, Rinaldi, S, Ferrari, P, Tjønneland, A, Halkjær, J, Dahm, CC, Vistisen, HT, Menegaux, F, Perduca, V, Severi, G, Aleksandrova, K, Schulze, MB, Masala, G, Sieri, S, Tumino, R, Macciotta, A, Panico, S, Hiensch, AE, May, AM, Quirós, JR, Agudo, A, Sánchez, M-J, Amiano, P, Colorado-Yohar, S, Ardanaz, E, Allen, NE, Weiderpass, E, Fortner, RT, Christakoudi, S, Tsilidis, KK, Riboli, E, Kaaks, R, Gunter, MJ, Viallon, V, Dossus, L