Hi Bob & Joy, It's me again - the irrepressible digger.... You can search PubMed at: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi I looked, 625 hits, some with abstracts, all with related information links... We can make a difference! ...... murray [log in to unmask] View the Parkinson's Awareness Links at: http://www.geocities.com/janet313/pienet/wwweb/index.html