Cyclin A triggers mitosis either via the greatwall kinase pathway or cyclin B by Hégarat, N, Crncec, A, Suarez Peredo Rodriguez, MF, Echegaray Iturra, F, Gu, Y, Busby, O, Lang, PF, Barr, AR, Bakal, C, Kanemaki, MT, Lamond, AI, Novak, B, Ly, T, Hochegger, H