{"batchcode": "21C1104", "histograms": [{"histogram": {"Angina pectoris": 1, "Asthenia": 1, "Back pain": 1, "Body temperature increased": 1, "Diarrhoea": 1, "Dizziness": 1, "Headache": 1, "Myalgia": 1, "Nausea": 1, "Pain in extremity": 1, "Vaccination site pain": 1}, "batchcodes": ["21C1104"]}]}