case 1: “A 51-year-old male presents with abdominal pain for 1 month”
case 2: “A 30-year-old male presents with fever with chronic non-productive cough for 4 months”
case 3: “A 19-year-old male presents with fever with chest pain for 1 week”
case 4: “A 72-year-old male presents with pulmonary nodule”
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