XML DTDs for Healthcare 
clinical.header.dtd
operative.report.dtd
pathology.report.dtd
radiology.report.dtd
radiation.therapy.summary.dtd
admission.note.dtd
history.physical.dtd
discharge.summary.dtd
The namespace enabled versions
operative.report.ns.dtd
pathology.report.ns.dtd
radiology.report.ns.dtd
radiation.therapy.summary.ns.dtd
admission.note.ns.dtd
history.physical.ns.dtd
discharge.summary.ns.dtd
The DICOM 3.0 XML DTDs 
astm.dicom.dtd
astm.dicom.base.dtd
astm.dicom.elements.dtd