title: What is the best dose of nature and green exercise for improving mental health? A multi-study analysis.
authors.affiliation: Interdisciplinary Centre for Environment and Society, Department of Biological Sciences, University of Essex, Colchester CO4 3SQ, U.K.
authors.forename: Jo
authors.initials: J
authors.lastname: Barton
authors.forename: Jules
authors.initials: J
authors.lastname: Pretty