Suitable participants will be initially approached by a familiar member of staff. The clinician will inform the potential participant about the research, introduce the study with an explanation of what would be involved in taking part and the potential participants will be asked if they would be interested in considering participation in the study. If interest is expressed, the potential participants will be provided with further information, including a Participant Information Letter and a consent form. The potential participant will be given the opportunity to ask the clinician questions about the study. Verbal consent will be obtained from the potential participant to pass their details onto the CI/RA so a meeting can be arranged. Contact details will be given to the CI/RA either in person or via telephone.