Vanattou-Saïfoudine, Natacha and McNamara, R and Harkin, A (2012) Caffeine provokes adverse interactions with 3,4-methylenedioxymethamphetamine (MDMA, 'ecstasy') and related psychostimulants: mechanisms and mediators. British Journal of Pharmacology , 167 , (5) , pp. 946-959.