A multifactorial approach employing melatonin to accelerate resynchronization of sleep-wake cycle after a 12 time-zone westerly transmeridian flight in elite soccer athletes - Cardinali, D. P.; Bortman, G. P.; Liotta, G.; Lloret, S. P.; Albornoz, L. E.; Cutrera, R. A.; Batista, J.; Gallo, P. O. (2002)