RT Journal Article SR Electronic T1 Nuclear medicine functional imaging of the brain JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 364 OP 368 DO 10.7861/clinmedicine.12-4-364 VO 12 IS 4 A2 Val Lewington A1 Simon J Hughes YR 2012 UL http://www.rcpjournals.org/content/12/4/364.abstract