Menassol, J B, Tautou, C, Collet, A, Chesneau, D, Lomet, D, Dupont, J, Malpaux, B, Scaramuzzi, R J, "The effect of an intracerebroventricular injection of metformin or AICAR on the plasma concentrations of melatonin in the ewe: potential involvement of AMPK?", BMC Neuroscience,