Sohn, Emily
Article History
First Online: 23 September 2015
Change Date: 14 October 2015
Change Type: Correction
Change Details: The article 'Research without prejudice' (Nature 525, S12–S13; 2015) incorrectly stated that the approval of the US National Institute on Drug Abuse (NIDA) is required for US trials involving cannabis. In fact, NIDA provides cannabis for every research project that has completed the government-mandated approval process. The same article also implied that NIDA was holding up the start of a trial led by Sue Sisley, but the delay is caused by other circumstances.
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