González-Arto, M. Aguilar, D. Gaspar-Torrubia, E. Gallego, M. Carvajal-Serna, M. Herrera-Marcos, L. Serrano-Blesa, E. Dos, Santos Hamilton Pérez-Pé, R. Muiño-Blanco, T. Cebrián-Pérez, J. A. Casao, A. Melatonin MT1 and MT2 receptors in the ram reproductive tract Int. j. mol. sci. 10.3390/ijms18030662 2017 2017