Property information
Formal citation, e.g. identifier in external database to indicate / attribute source(s) for the definition. Free text indicate / attribute source(s) for the definition. EXAMPLE: Author Name, URI, MeSH Term C04, PUBMED ID, Wiki uri on 31.01.2007
definition source
Discussion on obo-discuss mailing-list, see http://bit.ly/hgm99w
GROUP:OBI:<http://purl.obolibrary.org/obo/obi>