Memory Impairment in Abstinent MDMA ("Ecstasy") Users: A Longitudinal InvestigationNeurol 56:966-969, Zakzanis,K.K. & Young,D.A., 2001
Memory Impairment in Abstinent MDMA ("Ecstast") UsersNeurol 51:1532-1537, Bolla,K.I.,et al, 1998