http://portal.acm.org/citation.cfm?id=965624
Pdf: www.bioontology.org/wiki/images/7/75/Gupta_disease_ontology.pdf Above is the work on Parkinson's disease by Amarnath Gupta, which was mentioned (as a source of structured data for Parkinsons) at the HCLSIG workshop at ISWC. --Nigam.