Corrigendum: Ceremonial ayahuasca in amazonian retreats—mental health and epigenetic outcomes from a six-month naturalistic study - Ruffell, Simon G. D.; Netzband, Nige; Tsang, WaiFung; Davies, Merlin; Inserra, Antonio; Butler, Matthew; Rucker, James J. H.; Tófoli, Luís Fernando; Dempster, Emma Louise; Young, Allan H.; Morgan, Celia J. A. (Frontiers in Psychiatry, 2023)