You can get the OWL version of OGMS at http://purl.obolibrary.org/obo/ogms.owl.

The Ontology for General Medical Science (OGMS) is based on the papers Toward an Ontological Treatment of Disease and Diagnosis and On Carcinomas and Other Pathological Entities. The ontology attempts to address some of the issues raised at the Workshop on Ontology of Diseases (Dallas, TX) and the Signs, Symptoms, and Findings Workshop(Milan, Italy). OGMS was formerly called the clinical phenotype ontology. Terms from OGMS hang from the Basic Formal Ontology.

If you are interested in participating in the development of OGMS, please send email to albertgoldfain@gmail.com. Be sure to include a google-account username with your request (this will be the username associated with a gmail address).

There is a google groups for discussing the project - http://groups.google.com/group/ogms-discuss . Click the "Apply for group membership" link to join, or send an email to alanruttenberg@gmail.com with the email address you would like added.