| http://www.w3.org/ns/prov#value | - The FDA AERS records indications and adverse reactions at the Preferred Term level; there are about 18 K Preferred Terms in MedDRA currently.??? Individual concepts in a vocabulary should be allowed to descend from more than one parent if necessary: for example, tuberculosis of the spine is both a kind of tuberculosis and a disorder of the spinal column.
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