Using LOM Classification for blueprint references

<purpose>
  <source>HEALTHCARE_LOMv2</source>
  <value>regulatory blueprint</value>
</purpose.
<taxonpath>
  <source>http://www.fda.gov/downloads/Drugs/DrugSafety/InformationbyDrugClass/UCM277916.pdf</source>
  <taxon>
    <id>I</id>
    <entry>Assessing Patients for Treatment with ER/LA Opioid Analgesic Therapy</entry>
  </taxon>
  <taxon>
    <id>II</id>
    <entry>Initiating Therapy, Modifying Dosing, and Discontinuing Use of ER/LA Opioid Analgesics</entry>
  <taxon>
</taxonpath>