A case definition for human influenza.
D000465:Algorithms; D006801:Humans; D007251:Influenza, Human / Q000145:classification*; D016247:Information Storage and Retrieval / Q000379:methods; D008487:Medical History Taking / Q000379:methods*; D016347:Medical Records Systems, Computerized; D009323:Natural Language Processing; D013358:Subject Headings; D009626:Terminology as Topic