{"batchcode": "013420A", "histograms": [{"batchcodes": ["013420A", "013M20A"], "histogram": {"Abdominal pain upper": 1, "Appendicectomy": 1, "Appendicitis": 1, "Computerised tomogram abdomen abnormal": 1}}, {"batchcodes": ["013420A"], "histogram": {"Erythema": 1, "Injection site pain": 1, "Swelling": 1, "Vaccination complication": 1}}]}