Binary switching of calendar cells in the pituitary defines the phase of the circannual cycle in mammals by Christian, H, Wood, S, Miedzinska, K, Saer, B, Johnson, M, Paton, B, Yu, L, McNeilly, J, Davis, J, McNeilly, A, Burt, D, Loudon, A

Circadian clock mechanism driving mammalian photoperiodism by Wood, SH, Hindle, MM, Mizoro, Y, Cheng, Y, Saer, BRC, Miedzinska, K, Christian, HC, Begley, N, McNeilly, J, McNeilly, AS, Meddle, SL, Burt, DW, Loudon, ASI