RT Journal Article SR Electronic T1 Is it Parkinson’s disease, and if not, what is it? JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP 154 OP 165 DO 10.1136/jnnp.2006.091835 VO 6 IS 3 A1 Taylor, Kate S M A1 Counsell, Carl YR 2006 UL http://pn.bmj.com/content/6/3/154.abstract AB