{"batchcode": "EX3899", "histograms": [{"histogram": {"Arterial rupture": 1, "Asthenia": 1, "Body temperature": 1, "Brain oedema": 1, "Cardiac hypertrophy": 1, "Chest pain": 1, "Dizziness": 1, "Dyspnoea": 1, "Headache": 1, "Heart rate decreased": 1, "Meningorrhagia": 1, "Pulmonary oedema": 1, "Pyrexia": 1, "Syncope": 1, "Vaccination site pain": 1}, "batchcodes": ["EX3899"]}]}