{"batchcode": "MV1005A", "histograms": [{"batchcodes": ["MV1005A"], "histogram": {"Arthralgia": 1, "COVID-19 immunisation": 1, "Cerebrovascular accident": 1, "Computerised tomogram": 1, "Fatigue": 1, "Headache": 1, "Magnetic resonance imaging": 1, "Malaise": 1, "Musculoskeletal stiffness": 1, "Myalgia": 1, "Pyrexia": 1}}]}