Galante, J. Friedrich, C. Dawson, A.F. Modrego-Alarcón, M. Gebbing, P. Delgado-Suárez, I. Gupta, R. Dean, L. Dalgleish, T. White, I.R. Jones, P.B. Mindfulness-based programmes for mental health promotion in adults in nonclinical settings: A systematic review and meta-analysis of randomised controlled trials PLos Med. 10.1371/journal.pmed.1003481 2021 2021