RT Journal Article SR Electronic T1 Consciousness: a user's guide JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 288 OP 288 DO 10.7861/clinmedicine.3-3-288 VO 3 IS 3 A1 David Parkes YR 2003 UL http://www.rcpjournals.org/content/3/3/288.1.abstract AB