| # [[Hippy Flip#cite%20ref-1|↑]] '''Co-use of MDMA with psilocybin/LSD may buffer against challenging experiences and enhance positive experiences'''. Richard J. Zeifman, Hannes Kettner, Broc A. Pagni, Austin Mallard, Daniel E. Roberts, David Erritzoe, Stephen Ross & Robin L. Carhart-Harris. Published: 22 August 2023. Accessed on 27th October 2023 via: <nowiki>https://www.nature.com/articles/s41598-023-40856-5#Sec2:~:text=Primary%20analyses-,Challenging%20experiences,high%20dose%20MDMA%20use%2C%20t(672)%E2%80%89%3D%E2%80%89%20%E2%88%92%E2%80%890.68%2C%20p%E2%80%89%3D%E2%80%890.498.,-Examining%20group%20differences</nowiki>
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