title: The challenge of optimising research participation: paying participants in mental health settings.
authors.affiliation: 1Faculty of Nursing and Midwifery, University of Sydney, Sydney, NSW, Australia.
authors.forename: Michelle
authors.initials: M
authors.lastname: Cleary
authors.affiliation: 3Discipline of Psychological Medicine, University of Sydney, Sydney, NSW, Australia.
authors.forename: Garry
authors.initials: G
authors.lastname: Walter
authors.affiliation: 2Research Unit, Sydney South West Area Mental Health Service (Eastern Zone), Concord Centre for Mental Health, Concord Hospital, Concord, NSW, Australia.
authors.forename: Sandra
authors.initials: S
authors.lastname: Matheson