1. From the Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada (S.N.P., C. du S., M.R.H.); the MRC Lipoprotein Team, Clinical Sciences Centre, Hammersmith Hospital, London, UK (X.-M.S., A.K.S.); and the Department of Pathology, University of British Columbia, Vancouver, BC, Canada (J.J.F.).