{"batchcode": "ENG204", "histograms": [{"batchcodes": ["ENG204"], "histogram": {"Arthralgia": 1, "COVID-19": 1, "Dyspepsia": 1, "Heart rate": 1, "Heart rate increased": 1, "Heart rate irregular": 1, "Loss of personal independence in daily activities": 1, "Pain in extremity": 1, "SARS-CoV-2 test": 1, "Vaccination failure": 1}}]}