This ontology [attempts to] models the ASTM E2182 Standard for Clinical Documents A clinical document has a clinical.header and a clinical.body 1 1 The ASTM E2182/E2183 XML Healthcare Document Architecture http://www.openhealth.org/ASTM/clinical.header.dtd Formal grammar: http://www.openhealth.org/ASTM/clinical.header.rnx 1 1 1 1 0 0 0 1 0 1 A PersonName is consists of a list of items, each of which may be repeated (interleaved) and each of which is a string