E for Ecstasy by Nicholas Saunders
Appendix 1: Reference Section

94 Interview with Rick Doblin, president of the Multi-disciplinary Association for Psychedelic Studies in High Times, December 1992.

Doblin talks about the way MDMA was outlawed in the US.

When the Drug Enforcement Agency tried to get the World Health Organisation to place MDMA in the international drug treaties, a very fortuitous thing happened. The person appointed chairman of WHO's Expert Committee was Dr. Paul Grof, brother of Stanislav Grof, the LSD researcher. [Through him] I was able to send information about MDMA to Paul Grof. Though the committee did make MDMA illegal, they did so over the objections of the chairman, with the objections being formally noted in the committee's recommendation. Even more importantly, the committee explicitly encouraged the signatory nations to the international drug control treaty to facilitate research into MDMA, which they called a most interesting substance.