{"batchcode": "045R21A", "histograms": [{"histogram": {"Chest pain": 1, "Culture negative": 1, "Dizziness": 1, "Immunology test normal": 1, "Magnetic resonance imaging abnormal": 1, "Myocarditis": 1, "Troponin increased": 1, "Viral test negative": 1}, "batchcodes": ["045R21A"]}]}