{"batchcode": "FH2834", "histograms": [{"batchcodes": ["FH2834"], "histogram": {"Balance disorder": 1, "COVID-19": 1, "Fall": 1, "Fatigue": 1, "Headache": 1, "Nausea": 1, "Rib fracture": 1, "SARS-CoV-2 test": 1, "Vaccination failure": 1, "Vertigo": 1}}]}