Evans, Jules, Robinson, Oliver ORCID: https://orcid.org/0000-0002-6758-2223, Argyri, Eirini, Suseelan, Shayam, Murphy-Beiner, Ashleigh, McAlpine, Rosalind, Luke, David ORCID: https://orcid.org/0000-0003-2141-2453, Michelle, Katrina and Prideaux, Ed (2023) Extended difficulties following the use of psychedelic drugs: a mixed methods study. PLoS ONE, 18 (10):e0293349. pp. 1-24. ISSN 1932-6203 (Online) (doi:10.1371/journal.pone.0293349)