An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Garcia-Romeu A, Davis AK, Erowid F, Erowid E, Griffiths RR, Johnson MW.Garcia-Romeu A, et al. Among authors: davis ak.J Psychopharmacol. 2019 Sep;33(9):1088-1101. doi: 10.1177/0269881119845793. Epub 2019 May 14.J Psychopharmacol. 2019.PMID: 31084460