1. Centre for Cell Engineering, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, Joseph Black Building, University of Glasgow, Glasgow, G12 8QQ, U.K.
2. Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow, G12 8LT, U.K.
3. Scottish Polyomics Facility. Wolfson Wohl Cancer Research Centre, College of Medical, Veterinary & Life Sciences, University of Glasgow, Garscube Estate, Glasgow G61 1QH, U.K.
4. Department of Orthopaedics, Southern General Hospital, 1345 Govan Road, Glasgow G514TF, U.K.