MDMA-assisted psychotherapy for victims of sexual abuse with severe post-traumatic stress disorder: an open label pilot study in Brazil http://www.bjp.org.br/details/2044/en-US/3-4-methylenedioxymethamphetamine--mdma--assisted-psychotherapy-for-victims-of-sexual-abuse-with-severe-post-traumatic-stress-disorder--an-open-label- Psychedelic research: www.maps.org/research