Oops! Thought I'd included the address for the articleon PD & genetics. Thank you, Rita, for setting me straight. Forgive me. Actually, there are 2 of them: http://neuro-chief-e.mgh.harvard.edu/parkinsonsweb/Main/Chap14.html and http://neuro-chief-e.mgh.harvard.edu/parkinsonsweb/Main/News/gene.html Good luck and enjoy. Barb Brock