{"batchcode": "ELO734", "histograms": [{"batchcodes": ["ELO734"], "histogram": {"Cervicobrachial syndrome": 1, "Influenza": 1, "Migraine": 1, "Pain in extremity": 1, "Peripheral swelling": 1, "SARS-CoV-2 test": 1, "Vaccination site swelling": 1}}]}