{"batchcode": "001B21", "histograms": [{"batchcodes": ["001B21", "EN6208"], "histogram": {"Interchange of vaccine products": 1}}, {"batchcodes": ["001B21"], "histogram": {"Cerebrovascular accident": 1, "Computerised tomogram": 1, "Echocardiogram": 1, "Injection site pain": 1, "Magnetic resonance imaging": 1, "Myalgia": 1, "Pain": 1, "Visual impairment": 1}}]}