Affiliation: | 1. British Heart Foundation Cardiovascular Research Centre, University of Glasgow, , Glasgow, UK;2. Department of Cardiology, Glasgow Royal Infirmary, , Glasgow, UK;3. Department of Biochemistry, Gartnavel General Hospital, , Glasgow, UK;4. Robertson Centre for Biostatistics, University of Glasgow, , Glasgow, UK;5. Scottish National Advanced Heart Failure Service, Golden Jubilee National Hospital, , Glasgow, UK |