| http://www.w3.org/ns/prov#value | - Agencies may accept proof and certification from a licensed medical professional (e.g., a physician or other medical professional duly certified by a State, the District of Columbia, or a U.S. territory, to practice medicine); a licensed vocational rehabilitation specialist (i.e., state or private); or any Federal agency; State agency, or agency of the District of Columbia or a U.S. territory that
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