Pull medical symptoms, diseases and drugs from text block.
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The core of our data extraction API. Matches the input text against concepts in the Lexigraph to find and extract concept matches. Maintains pointers to the exact character offsets matched in the text. Identifies the types of the concept (drug, anatomy, problem, etc.), its context (negation, speculation, patient/family history, demographics), and a sectionId if it appears in a known section.