1. From the Institute of Cardiovascular and Medical Sciences (R.L.F., M.R.W., R.M.T., A.F.D., S.P., G.T.M., J.D.), School of Medicine (R.M., P.A.M.), and West of Scotland Cancer Surveillance Unit (D.S.M.), College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom.