{"batchcode": "213 D 21 A", "histograms": [{"histogram": {"Chest pain": 1, "Deafness": 1, "Ear discomfort": 1, "Fatigue": 1, "Headache": 1, "Laboratory test normal": 1, "Myalgia": 1, "Visual impairment": 1}, "batchcodes": ["213 D 21 A"]}]}