1. ; Charles Dent Metabolic Unit; The National Hospital for Neurology and Neurosurgery; London
2. ; Charles Dent Metabolic Unit; The National Hospital for Neurology and Neurosurgery; Post Box 92 Queen Square London WCIN 3BG UK. E-mail
3. ; The Renal Unit; King's College Hospital; London UK
4. ; The Liver Unit; King's College Hospital; London UK